/**
  * @param $name
  * @param $arguments
  * @return apiServiceRequest|array
  * @throws apiException
  */
 public function __call($name, $arguments)
 {
     if (count($arguments) != 1 && count($arguments) != 2) {
         throw new apiException("client method calls expect 1 or 2 parameter (\$client->plus->activities->list(array('userId' => 'me'))");
     }
     if (!is_array($arguments[0])) {
         throw new apiException("client method parameter should be an array (\$client->plus->activities->list(array('userId' => 'me'))");
     }
     $batchKey = false;
     if (isset($arguments[1])) {
         if (!is_string($arguments[1])) {
             throw new apiException("The batch key parameter should be a string (\$client->plus->activities->list( array('userId' => 'me'), 'batchKey'))");
         }
         $batchKey = $arguments[1];
     }
     if (!isset($this->methods[$name])) {
         throw new apiException("Unknown function: {$this->serviceName}->{$this->resourceName}->{$name}()");
     }
     $method = $this->methods[$name];
     $parameters = $arguments[0];
     // postBody is a special case since it's not defined in the discovery document as parameter, but we abuse the param entry for storing it
     $postBody = null;
     if (isset($parameters['postBody'])) {
         if (is_object($parameters['postBody'])) {
             $this->stripNull($parameters['postBody']);
         }
         // Some APIs require the postBody to be set under the data key.
         if (is_array($parameters['postBody']) && 'latitude' == $this->serviceName) {
             if (!isset($parameters['postBody']['data'])) {
                 $rawBody = $parameters['postBody'];
                 unset($parameters['postBody']);
                 $parameters['postBody']['data'] = $rawBody;
             }
         }
         $postBody = is_array($parameters['postBody']) || is_object($parameters['postBody']) ? json_encode($parameters['postBody']) : $parameters['postBody'];
         unset($parameters['postBody']);
         if (isset($parameters['optParams'])) {
             $optParams = $parameters['optParams'];
             unset($parameters['optParams']);
             $parameters = array_merge($parameters, $optParams);
         }
     }
     if (!isset($method['parameters'])) {
         $method['parameters'] = array();
     }
     $method['parameters'] = array_merge($method['parameters'], $this->stackParameters);
     foreach ($parameters as $key => $val) {
         if ($key != 'postBody' && !isset($method['parameters'][$key])) {
             throw new apiException("({$name}) unknown parameter: '{$key}'");
         }
     }
     if (isset($method['parameters'])) {
         foreach ($method['parameters'] as $paramName => $paramSpec) {
             if (isset($paramSpec['required']) && $paramSpec['required'] && !isset($parameters[$paramName])) {
                 throw new apiException("({$name}) missing required param: '{$paramName}'");
             }
             if (isset($parameters[$paramName])) {
                 $value = $parameters[$paramName];
                 $parameters[$paramName] = $paramSpec;
                 $parameters[$paramName]['value'] = $value;
                 unset($parameters[$paramName]['required']);
             } else {
                 unset($parameters[$paramName]);
             }
         }
     }
     // Discovery v1.0 puts the canonical method id under the 'id' field.
     if (!isset($method['id'])) {
         $method['id'] = $method['rpcMethod'];
     }
     // Discovery v1.0 puts the canonical path under the 'path' field.
     if (!isset($method['path'])) {
         $method['path'] = $method['restPath'];
     }
     $restBasePath = $this->service->restBasePath;
     // Process Media Request
     $contentType = false;
     if (isset($method['mediaUpload'])) {
         $media = apiMediaFileUpload::process($postBody, $parameters);
         if ($media) {
             $contentType = isset($media['content-type']) ? $media['content-type'] : null;
             $postBody = isset($media['postBody']) ? $media['postBody'] : null;
             $restBasePath = $method['mediaUpload']['protocols']['simple']['path'];
             $method['path'] = '';
         }
     }
     $request = new apiServiceRequest($restBasePath, $this->service->rpcPath, $method['path'], $method['id'], $method['httpMethod'], $parameters, $postBody);
     $request->setContentType($contentType);
     // Terminate immediatly if this is a resumable request.
     if (isset($parameters['uploadType']['value']) && 'resumable' == $parameters['uploadType']['value']) {
         return $request;
     }
     if ($batchKey) {
         $request->setBatchKey($batchKey);
         return $request;
     } else {
         return apiREST::execute($request);
     }
 }