<?php
/**
 * WhatsAppCampaignsApi
 * PHP version 5
 *
 * @category Class
 * @package  Brevo\Client
 * @author   Swagger Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */

/**
 * Brevo API
 *
 * Brevo provide a RESTFul API that can be used with any languages. With this API, you will be able to :   - Manage your campaigns and get the statistics   - Manage your contacts   - Send transactional Emails and SMS   - and much more...  You can download our wrappers at https://github.com/orgs/brevo  **Possible responses**   | Code | Message |   | :-------------: | ------------- |   | 200  | OK. Successful Request  |   | 201  | OK. Successful Creation |   | 202  | OK. Request accepted |   | 204  | OK. Successful Update/Deletion  |   | 400  | Error. Bad Request  |   | 401  | Error. Authentication Needed  |   | 402  | Error. Not enough credit, plan upgrade needed  |   | 403  | Error. Permission denied  |   | 404  | Error. Object does not exist |   | 405  | Error. Method not allowed  |   | 406  | Error. Not Acceptable  |
 *
 * OpenAPI spec version: 3.0.0
 * Contact: contact@brevo.com
 * Generated by: https://github.com/swagger-api/swagger-codegen.git
 * Swagger Codegen version: 2.4.29
 */

/**
 * NOTE: This class is auto generated by the swagger code generator program.
 * https://github.com/swagger-api/swagger-codegen
 * Do not edit the class manually.
 */

namespace Brevo\Client\Api;

use GuzzleHttp\Client;
use GuzzleHttp\ClientInterface;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Psr7\MultipartStream;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\RequestOptions;
use Brevo\Client\ApiException;
use Brevo\Client\Configuration;
use Brevo\Client\HeaderSelector;
use Brevo\Client\ObjectSerializer;

/**
 * WhatsAppCampaignsApi Class Doc Comment
 *
 * @category Class
 * @package  Brevo\Client
 * @author   Swagger Codegen team
 * @link     https://github.com/swagger-api/swagger-codegen
 */
class WhatsAppCampaignsApi
{
    /**
     * @var ClientInterface
     */
    protected $client;

    /**
     * @var Configuration
     */
    protected $config;

    /**
     * @var HeaderSelector
     */
    protected $headerSelector;

    /**
     * @param ClientInterface $client
     * @param Configuration   $config
     * @param HeaderSelector  $selector
     */
    public function __construct(
        ClientInterface $client = null,
        Configuration $config = null,
        HeaderSelector $selector = null
    ) {
        $this->client = $client ?: new Client();
        $this->config = $config ?: new Configuration();
        $this->headerSelector = $selector ?: new HeaderSelector();
    }

    /**
     * @return Configuration
     */
    public function getConfig()
    {
        return $this->config;
    }

    /**
     * Operation createWhatsAppCampaign
     *
     * Create and Send a WhatsApp campaign
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppCampaign $whatsAppCampaigns Values to create a campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\CreateModel
     */
    public function createWhatsAppCampaign($whatsAppCampaigns)
    {
        list($response) = $this->createWhatsAppCampaignWithHttpInfo($whatsAppCampaigns);
        return $response;
    }

    /**
     * Operation createWhatsAppCampaignWithHttpInfo
     *
     * Create and Send a WhatsApp campaign
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppCampaign $whatsAppCampaigns Values to create a campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\CreateModel, HTTP status code, HTTP response headers (array of strings)
     */
    public function createWhatsAppCampaignWithHttpInfo($whatsAppCampaigns)
    {
        $returnType = '\Brevo\Client\Model\CreateModel';
        $request = $this->createWhatsAppCampaignRequest($whatsAppCampaigns);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 201:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\CreateModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation createWhatsAppCampaignAsync
     *
     * Create and Send a WhatsApp campaign
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppCampaign $whatsAppCampaigns Values to create a campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createWhatsAppCampaignAsync($whatsAppCampaigns)
    {
        return $this->createWhatsAppCampaignAsyncWithHttpInfo($whatsAppCampaigns)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation createWhatsAppCampaignAsyncWithHttpInfo
     *
     * Create and Send a WhatsApp campaign
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppCampaign $whatsAppCampaigns Values to create a campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createWhatsAppCampaignAsyncWithHttpInfo($whatsAppCampaigns)
    {
        $returnType = '\Brevo\Client\Model\CreateModel';
        $request = $this->createWhatsAppCampaignRequest($whatsAppCampaigns);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'createWhatsAppCampaign'
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppCampaign $whatsAppCampaigns Values to create a campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function createWhatsAppCampaignRequest($whatsAppCampaigns)
    {
        // verify the required parameter 'whatsAppCampaigns' is set
        if ($whatsAppCampaigns === null || (is_array($whatsAppCampaigns) && count($whatsAppCampaigns) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $whatsAppCampaigns when calling createWhatsAppCampaign'
            );
        }

        $resourcePath = '/whatsappCampaigns';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;



        // body params
        $_tempBody = null;
        if (isset($whatsAppCampaigns)) {
            $_tempBody = $whatsAppCampaigns;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation createWhatsAppTemplate
     *
     * Create a WhatsApp template
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppTemplate $whatsAppTemplates Values to create a template (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\CreateModel
     */
    public function createWhatsAppTemplate($whatsAppTemplates)
    {
        list($response) = $this->createWhatsAppTemplateWithHttpInfo($whatsAppTemplates);
        return $response;
    }

    /**
     * Operation createWhatsAppTemplateWithHttpInfo
     *
     * Create a WhatsApp template
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppTemplate $whatsAppTemplates Values to create a template (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\CreateModel, HTTP status code, HTTP response headers (array of strings)
     */
    public function createWhatsAppTemplateWithHttpInfo($whatsAppTemplates)
    {
        $returnType = '\Brevo\Client\Model\CreateModel';
        $request = $this->createWhatsAppTemplateRequest($whatsAppTemplates);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 201:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\CreateModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation createWhatsAppTemplateAsync
     *
     * Create a WhatsApp template
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppTemplate $whatsAppTemplates Values to create a template (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createWhatsAppTemplateAsync($whatsAppTemplates)
    {
        return $this->createWhatsAppTemplateAsyncWithHttpInfo($whatsAppTemplates)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation createWhatsAppTemplateAsyncWithHttpInfo
     *
     * Create a WhatsApp template
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppTemplate $whatsAppTemplates Values to create a template (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function createWhatsAppTemplateAsyncWithHttpInfo($whatsAppTemplates)
    {
        $returnType = '\Brevo\Client\Model\CreateModel';
        $request = $this->createWhatsAppTemplateRequest($whatsAppTemplates);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'createWhatsAppTemplate'
     *
     * @param  \Brevo\Client\Model\CreateWhatsAppTemplate $whatsAppTemplates Values to create a template (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function createWhatsAppTemplateRequest($whatsAppTemplates)
    {
        // verify the required parameter 'whatsAppTemplates' is set
        if ($whatsAppTemplates === null || (is_array($whatsAppTemplates) && count($whatsAppTemplates) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $whatsAppTemplates when calling createWhatsAppTemplate'
            );
        }

        $resourcePath = '/whatsappCampaigns/template';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;



        // body params
        $_tempBody = null;
        if (isset($whatsAppTemplates)) {
            $_tempBody = $whatsAppTemplates;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation deleteWhatsAppCampaign
     *
     * Delete a WhatsApp campaign
     *
     * @param  int $campaignId id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return void
     */
    public function deleteWhatsAppCampaign($campaignId)
    {
        $this->deleteWhatsAppCampaignWithHttpInfo($campaignId);
    }

    /**
     * Operation deleteWhatsAppCampaignWithHttpInfo
     *
     * Delete a WhatsApp campaign
     *
     * @param  int $campaignId id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of null, HTTP status code, HTTP response headers (array of strings)
     */
    public function deleteWhatsAppCampaignWithHttpInfo($campaignId)
    {
        $returnType = '';
        $request = $this->deleteWhatsAppCampaignRequest($campaignId);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            return [null, $statusCode, $response->getHeaders()];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation deleteWhatsAppCampaignAsync
     *
     * Delete a WhatsApp campaign
     *
     * @param  int $campaignId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function deleteWhatsAppCampaignAsync($campaignId)
    {
        return $this->deleteWhatsAppCampaignAsyncWithHttpInfo($campaignId)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation deleteWhatsAppCampaignAsyncWithHttpInfo
     *
     * Delete a WhatsApp campaign
     *
     * @param  int $campaignId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function deleteWhatsAppCampaignAsyncWithHttpInfo($campaignId)
    {
        $returnType = '';
        $request = $this->deleteWhatsAppCampaignRequest($campaignId);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    return [null, $response->getStatusCode(), $response->getHeaders()];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'deleteWhatsAppCampaign'
     *
     * @param  int $campaignId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function deleteWhatsAppCampaignRequest($campaignId)
    {
        // verify the required parameter 'campaignId' is set
        if ($campaignId === null || (is_array($campaignId) && count($campaignId) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $campaignId when calling deleteWhatsAppCampaign'
            );
        }

        $resourcePath = '/whatsappCampaigns/{campaignId}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // path params
        if ($campaignId !== null) {
            $resourcePath = str_replace(
                '{' . 'campaignId' . '}',
                ObjectSerializer::toPathValue($campaignId),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'DELETE',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getWhatsAppCampaign
     *
     * Get a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\GetWhatsappCampaignOverview
     */
    public function getWhatsAppCampaign($campaignId)
    {
        list($response) = $this->getWhatsAppCampaignWithHttpInfo($campaignId);
        return $response;
    }

    /**
     * Operation getWhatsAppCampaignWithHttpInfo
     *
     * Get a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\GetWhatsappCampaignOverview, HTTP status code, HTTP response headers (array of strings)
     */
    public function getWhatsAppCampaignWithHttpInfo($campaignId)
    {
        $returnType = '\Brevo\Client\Model\GetWhatsappCampaignOverview';
        $request = $this->getWhatsAppCampaignRequest($campaignId);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\GetWhatsappCampaignOverview',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation getWhatsAppCampaignAsync
     *
     * Get a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppCampaignAsync($campaignId)
    {
        return $this->getWhatsAppCampaignAsyncWithHttpInfo($campaignId)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getWhatsAppCampaignAsyncWithHttpInfo
     *
     * Get a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppCampaignAsyncWithHttpInfo($campaignId)
    {
        $returnType = '\Brevo\Client\Model\GetWhatsappCampaignOverview';
        $request = $this->getWhatsAppCampaignRequest($campaignId);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'getWhatsAppCampaign'
     *
     * @param  int $campaignId Id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function getWhatsAppCampaignRequest($campaignId)
    {
        // verify the required parameter 'campaignId' is set
        if ($campaignId === null || (is_array($campaignId) && count($campaignId) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $campaignId when calling getWhatsAppCampaign'
            );
        }

        $resourcePath = '/whatsappCampaigns/{campaignId}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // path params
        if ($campaignId !== null) {
            $resourcePath = str_replace(
                '{' . 'campaignId' . '}',
                ObjectSerializer::toPathValue($campaignId),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getWhatsAppCampaigns
     *
     * Return all your created WhatsApp campaigns
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\GetWhatsappCampaigns
     */
    public function getWhatsAppCampaigns($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        list($response) = $this->getWhatsAppCampaignsWithHttpInfo($startDate, $endDate, $limit, $offset, $sort);
        return $response;
    }

    /**
     * Operation getWhatsAppCampaignsWithHttpInfo
     *
     * Return all your created WhatsApp campaigns
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\GetWhatsappCampaigns, HTTP status code, HTTP response headers (array of strings)
     */
    public function getWhatsAppCampaignsWithHttpInfo($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        $returnType = '\Brevo\Client\Model\GetWhatsappCampaigns';
        $request = $this->getWhatsAppCampaignsRequest($startDate, $endDate, $limit, $offset, $sort);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\GetWhatsappCampaigns',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation getWhatsAppCampaignsAsync
     *
     * Return all your created WhatsApp campaigns
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppCampaignsAsync($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        return $this->getWhatsAppCampaignsAsyncWithHttpInfo($startDate, $endDate, $limit, $offset, $sort)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getWhatsAppCampaignsAsyncWithHttpInfo
     *
     * Return all your created WhatsApp campaigns
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppCampaignsAsyncWithHttpInfo($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        $returnType = '\Brevo\Client\Model\GetWhatsappCampaigns';
        $request = $this->getWhatsAppCampaignsRequest($startDate, $endDate, $limit, $offset, $sort);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'getWhatsAppCampaigns'
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the campaigns created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function getWhatsAppCampaignsRequest($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        if ($limit !== null && $limit > 100) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling WhatsAppCampaignsApi.getWhatsAppCampaigns, must be smaller than or equal to 100.');
        }
        if ($limit !== null && $limit < 0) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling WhatsAppCampaignsApi.getWhatsAppCampaigns, must be bigger than or equal to 0.');
        }


        $resourcePath = '/whatsappCampaigns';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        if ($startDate !== null) {
            $queryParams['startDate'] = ObjectSerializer::toQueryValue($startDate);
        }
        // query params
        if ($endDate !== null) {
            $queryParams['endDate'] = ObjectSerializer::toQueryValue($endDate);
        }
        // query params
        if ($limit !== null) {
            $queryParams['limit'] = ObjectSerializer::toQueryValue($limit);
        }
        // query params
        if ($offset !== null) {
            $queryParams['offset'] = ObjectSerializer::toQueryValue($offset);
        }
        // query params
        if ($sort !== null) {
            $queryParams['sort'] = ObjectSerializer::toQueryValue($sort);
        }


        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getWhatsAppConfig
     *
     * Get your WhatsApp API account information
     *
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\GetWhatsAppConfig
     */
    public function getWhatsAppConfig()
    {
        list($response) = $this->getWhatsAppConfigWithHttpInfo();
        return $response;
    }

    /**
     * Operation getWhatsAppConfigWithHttpInfo
     *
     * Get your WhatsApp API account information
     *
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\GetWhatsAppConfig, HTTP status code, HTTP response headers (array of strings)
     */
    public function getWhatsAppConfigWithHttpInfo()
    {
        $returnType = '\Brevo\Client\Model\GetWhatsAppConfig';
        $request = $this->getWhatsAppConfigRequest();

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\GetWhatsAppConfig',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation getWhatsAppConfigAsync
     *
     * Get your WhatsApp API account information
     *
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppConfigAsync()
    {
        return $this->getWhatsAppConfigAsyncWithHttpInfo()
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getWhatsAppConfigAsyncWithHttpInfo
     *
     * Get your WhatsApp API account information
     *
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppConfigAsyncWithHttpInfo()
    {
        $returnType = '\Brevo\Client\Model\GetWhatsAppConfig';
        $request = $this->getWhatsAppConfigRequest();

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'getWhatsAppConfig'
     *
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function getWhatsAppConfigRequest()
    {

        $resourcePath = '/whatsappCampaigns/config';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;



        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation getWhatsAppTemplates
     *
     * Return all your created WhatsApp templates
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return \Brevo\Client\Model\GetWATemplates
     */
    public function getWhatsAppTemplates($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        list($response) = $this->getWhatsAppTemplatesWithHttpInfo($startDate, $endDate, $limit, $offset, $sort);
        return $response;
    }

    /**
     * Operation getWhatsAppTemplatesWithHttpInfo
     *
     * Return all your created WhatsApp templates
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of \Brevo\Client\Model\GetWATemplates, HTTP status code, HTTP response headers (array of strings)
     */
    public function getWhatsAppTemplatesWithHttpInfo($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        $returnType = '\Brevo\Client\Model\GetWATemplates';
        $request = $this->getWhatsAppTemplatesRequest($startDate, $endDate, $limit, $offset, $sort);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            $responseBody = $response->getBody();
            if ($returnType === '\SplFileObject') {
                $content = $responseBody; //stream goes to serializer
            } else {
                $content = $responseBody->getContents();
                if ($returnType !== 'string') {
                    $content = json_decode($content);
                }
            }

            return [
                ObjectSerializer::deserialize($content, $returnType, []),
                $response->getStatusCode(),
                $response->getHeaders()
            ];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 200:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\GetWATemplates',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation getWhatsAppTemplatesAsync
     *
     * Return all your created WhatsApp templates
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppTemplatesAsync($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        return $this->getWhatsAppTemplatesAsyncWithHttpInfo($startDate, $endDate, $limit, $offset, $sort)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation getWhatsAppTemplatesAsyncWithHttpInfo
     *
     * Return all your created WhatsApp templates
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function getWhatsAppTemplatesAsyncWithHttpInfo($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        $returnType = '\Brevo\Client\Model\GetWATemplates';
        $request = $this->getWhatsAppTemplatesRequest($startDate, $endDate, $limit, $offset, $sort);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    $responseBody = $response->getBody();
                    if ($returnType === '\SplFileObject') {
                        $content = $responseBody; //stream goes to serializer
                    } else {
                        $content = $responseBody->getContents();
                        if ($returnType !== 'string') {
                            $content = json_decode($content);
                        }
                    }

                    return [
                        ObjectSerializer::deserialize($content, $returnType, []),
                        $response->getStatusCode(),
                        $response->getHeaders()
                    ];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'getWhatsAppTemplates'
     *
     * @param  string $startDate **Mandatory if endDate is used**. Starting (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  string $endDate **Mandatory if startDate is used**. Ending (urlencoded) UTC date-time (YYYY-MM-DDTHH:mm:ss.SSSZ) to filter the templates created. **Prefer to pass your timezone in date-time format for accurate result** (optional)
     * @param  int $limit Number of documents per page (optional, default to 50)
     * @param  int $offset Index of the first document in the page (optional, default to 0)
     * @param  string $sort Sort the results in the ascending/descending order of record modification. Default order is **descending** if &#x60;sort&#x60; is not passed (optional, default to desc)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function getWhatsAppTemplatesRequest($startDate = null, $endDate = null, $limit = '50', $offset = '0', $sort = 'desc')
    {
        if ($limit !== null && $limit > 100) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling WhatsAppCampaignsApi.getWhatsAppTemplates, must be smaller than or equal to 100.');
        }
        if ($limit !== null && $limit < 0) {
            throw new \InvalidArgumentException('invalid value for "$limit" when calling WhatsAppCampaignsApi.getWhatsAppTemplates, must be bigger than or equal to 0.');
        }


        $resourcePath = '/whatsappCampaigns/template-list';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;

        // query params
        if ($startDate !== null) {
            $queryParams['startDate'] = ObjectSerializer::toQueryValue($startDate);
        }
        // query params
        if ($endDate !== null) {
            $queryParams['endDate'] = ObjectSerializer::toQueryValue($endDate);
        }
        // query params
        if ($limit !== null) {
            $queryParams['limit'] = ObjectSerializer::toQueryValue($limit);
        }
        // query params
        if ($offset !== null) {
            $queryParams['offset'] = ObjectSerializer::toQueryValue($offset);
        }
        // query params
        if ($sort !== null) {
            $queryParams['sort'] = ObjectSerializer::toQueryValue($sort);
        }


        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'GET',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation sendWhatsAppTemplateApproval
     *
     * Send your WhatsApp template for approval
     *
     * @param  int $templateId id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return void
     */
    public function sendWhatsAppTemplateApproval($templateId)
    {
        $this->sendWhatsAppTemplateApprovalWithHttpInfo($templateId);
    }

    /**
     * Operation sendWhatsAppTemplateApprovalWithHttpInfo
     *
     * Send your WhatsApp template for approval
     *
     * @param  int $templateId id of the campaign (required)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of null, HTTP status code, HTTP response headers (array of strings)
     */
    public function sendWhatsAppTemplateApprovalWithHttpInfo($templateId)
    {
        $returnType = '';
        $request = $this->sendWhatsAppTemplateApprovalRequest($templateId);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            return [null, $statusCode, $response->getHeaders()];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation sendWhatsAppTemplateApprovalAsync
     *
     * Send your WhatsApp template for approval
     *
     * @param  int $templateId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function sendWhatsAppTemplateApprovalAsync($templateId)
    {
        return $this->sendWhatsAppTemplateApprovalAsyncWithHttpInfo($templateId)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation sendWhatsAppTemplateApprovalAsyncWithHttpInfo
     *
     * Send your WhatsApp template for approval
     *
     * @param  int $templateId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function sendWhatsAppTemplateApprovalAsyncWithHttpInfo($templateId)
    {
        $returnType = '';
        $request = $this->sendWhatsAppTemplateApprovalRequest($templateId);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    return [null, $response->getStatusCode(), $response->getHeaders()];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'sendWhatsAppTemplateApproval'
     *
     * @param  int $templateId id of the campaign (required)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function sendWhatsAppTemplateApprovalRequest($templateId)
    {
        // verify the required parameter 'templateId' is set
        if ($templateId === null || (is_array($templateId) && count($templateId) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $templateId when calling sendWhatsAppTemplateApproval'
            );
        }

        $resourcePath = '/whatsappCampaigns/template/approval/{templateId}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // path params
        if ($templateId !== null) {
            $resourcePath = str_replace(
                '{' . 'templateId' . '}',
                ObjectSerializer::toPathValue($templateId),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'POST',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Operation updateWhatsAppCampaign
     *
     * Update a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     * @param  \Brevo\Client\Model\UpdateWhatsAppCampaign $whatsAppCampaign values to update WhatsApp Campaign (optional)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return void
     */
    public function updateWhatsAppCampaign($campaignId, $whatsAppCampaign = null)
    {
        $this->updateWhatsAppCampaignWithHttpInfo($campaignId, $whatsAppCampaign);
    }

    /**
     * Operation updateWhatsAppCampaignWithHttpInfo
     *
     * Update a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     * @param  \Brevo\Client\Model\UpdateWhatsAppCampaign $whatsAppCampaign values to update WhatsApp Campaign (optional)
     *
     * @throws \Brevo\Client\ApiException on non-2xx response
     * @throws \InvalidArgumentException
     * @return array of null, HTTP status code, HTTP response headers (array of strings)
     */
    public function updateWhatsAppCampaignWithHttpInfo($campaignId, $whatsAppCampaign = null)
    {
        $returnType = '';
        $request = $this->updateWhatsAppCampaignRequest($campaignId, $whatsAppCampaign);

        try {
            $options = $this->createHttpClientOption();
            try {
                $response = $this->client->send($request, $options);
            } catch (RequestException $e) {
                throw new ApiException(
                    "[{$e->getCode()}] {$e->getMessage()}",
                    $e->getCode(),
                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
                    $e->getResponse() ? $e->getResponse()->getBody()->getContents() : null
                );
            }

            $statusCode = $response->getStatusCode();

            if ($statusCode < 200 || $statusCode > 299) {
                throw new ApiException(
                    sprintf(
                        '[%d] Error connecting to the API (%s)',
                        $statusCode,
                        $request->getUri()
                    ),
                    $statusCode,
                    $response->getHeaders(),
                    $response->getBody()
                );
            }

            return [null, $statusCode, $response->getHeaders()];

        } catch (ApiException $e) {
            switch ($e->getCode()) {
                case 400:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
                case 404:
                    $data = ObjectSerializer::deserialize(
                        $e->getResponseBody(),
                        '\Brevo\Client\Model\ErrorModel',
                        $e->getResponseHeaders()
                    );
                    $e->setResponseObject($data);
                    break;
            }
            throw $e;
        }
    }

    /**
     * Operation updateWhatsAppCampaignAsync
     *
     * Update a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     * @param  \Brevo\Client\Model\UpdateWhatsAppCampaign $whatsAppCampaign values to update WhatsApp Campaign (optional)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function updateWhatsAppCampaignAsync($campaignId, $whatsAppCampaign = null)
    {
        return $this->updateWhatsAppCampaignAsyncWithHttpInfo($campaignId, $whatsAppCampaign)
            ->then(
                function ($response) {
                    return $response[0];
                }
            );
    }

    /**
     * Operation updateWhatsAppCampaignAsyncWithHttpInfo
     *
     * Update a WhatsApp campaign
     *
     * @param  int $campaignId Id of the campaign (required)
     * @param  \Brevo\Client\Model\UpdateWhatsAppCampaign $whatsAppCampaign values to update WhatsApp Campaign (optional)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Promise\PromiseInterface
     */
    public function updateWhatsAppCampaignAsyncWithHttpInfo($campaignId, $whatsAppCampaign = null)
    {
        $returnType = '';
        $request = $this->updateWhatsAppCampaignRequest($campaignId, $whatsAppCampaign);

        return $this->client
            ->sendAsync($request, $this->createHttpClientOption())
            ->then(
                function ($response) use ($returnType) {
                    return [null, $response->getStatusCode(), $response->getHeaders()];
                },
                function ($exception) {
                    $response = $exception->getResponse();
                    $statusCode = $response->getStatusCode();
                    throw new ApiException(
                        sprintf(
                            '[%d] Error connecting to the API (%s)',
                            $statusCode,
                            $exception->getRequest()->getUri()
                        ),
                        $statusCode,
                        $response->getHeaders(),
                        $response->getBody()
                    );
                }
            );
    }

    /**
     * Create request for operation 'updateWhatsAppCampaign'
     *
     * @param  int $campaignId Id of the campaign (required)
     * @param  \Brevo\Client\Model\UpdateWhatsAppCampaign $whatsAppCampaign values to update WhatsApp Campaign (optional)
     *
     * @throws \InvalidArgumentException
     * @return \GuzzleHttp\Psr7\Request
     */
    protected function updateWhatsAppCampaignRequest($campaignId, $whatsAppCampaign = null)
    {
        // verify the required parameter 'campaignId' is set
        if ($campaignId === null || (is_array($campaignId) && count($campaignId) === 0)) {
            throw new \InvalidArgumentException(
                'Missing the required parameter $campaignId when calling updateWhatsAppCampaign'
            );
        }

        $resourcePath = '/whatsappCampaigns/{campaignId}';
        $formParams = [];
        $queryParams = [];
        $headerParams = [];
        $httpBody = '';
        $multipart = false;


        // path params
        if ($campaignId !== null) {
            $resourcePath = str_replace(
                '{' . 'campaignId' . '}',
                ObjectSerializer::toPathValue($campaignId),
                $resourcePath
            );
        }

        // body params
        $_tempBody = null;
        if (isset($whatsAppCampaign)) {
            $_tempBody = $whatsAppCampaign;
        }

        if ($multipart) {
            $headers = $this->headerSelector->selectHeadersForMultipart(
                ['application/json']
            );
        } else {
            $headers = $this->headerSelector->selectHeaders(
                ['application/json'],
                ['application/json']
            );
        }

        // for model (json/xml)
        if (isset($_tempBody)) {
            // $_tempBody is the method argument, if present
            $httpBody = $_tempBody;
            
            if($headers['Content-Type'] === 'application/json') {
                // \stdClass has no __toString(), so we should encode it manually
                if ($httpBody instanceof \stdClass) {
                    $httpBody = \GuzzleHttp\json_encode($httpBody);
                }
                // array has no __toString(), so we should encode it manually
                if(is_array($httpBody)) {
                    $httpBody = \GuzzleHttp\json_encode(ObjectSerializer::sanitizeForSerialization($httpBody));
                }
            }
        } elseif (count($formParams) > 0) {
            if ($multipart) {
                $multipartContents = [];
                foreach ($formParams as $formParamName => $formParamValue) {
                    $multipartContents[] = [
                        'name' => $formParamName,
                        'contents' => $formParamValue
                    ];
                }
                // for HTTP post (form)
                $httpBody = new MultipartStream($multipartContents);

            } elseif ($headers['Content-Type'] === 'application/json') {
                $httpBody = \GuzzleHttp\json_encode($formParams);

            } else {
                // for HTTP post (form)
                $httpBody = \GuzzleHttp\Psr7\Query::build($formParams);
            }
        }

        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('api-key');
        if ($apiKey !== null) {
            $headers['api-key'] = $apiKey;
        }
        // this endpoint requires API key authentication
        $apiKey = $this->config->getApiKeyWithPrefix('partner-key');
        if ($apiKey !== null) {
            $headers['partner-key'] = $apiKey;
        }

        $defaultHeaders = [];
        if ($this->config->getUserAgent()) {
            $defaultHeaders['User-Agent'] = $this->config->getUserAgent();
        }

        $headers = array_merge(
            $defaultHeaders,
            $headerParams,
            $headers
        );

        $query = \GuzzleHttp\Psr7\Query::build($queryParams);
        return new Request(
            'PUT',
            $this->config->getHost() . $resourcePath . ($query ? "?{$query}" : ''),
            $headers,
            $httpBody
        );
    }

    /**
     * Create http client option
     *
     * @throws \RuntimeException on file opening failure
     * @return array of http client options
     */
    protected function createHttpClientOption()
    {
        $options = [];
        if ($this->config->getDebug()) {
            $options[RequestOptions::DEBUG] = fopen($this->config->getDebugFile(), 'a');
            if (!$options[RequestOptions::DEBUG]) {
                throw new \RuntimeException('Failed to open the debug file: ' . $this->config->getDebugFile());
            }
        }

        return $options;
    }
}
