original_string: public function postCommercial($channel, $length = 30, $token = null)
      {
          $availableOptions = ['length'];
          $options = ['length' => $length];
  
          return $this->sendRequest('POST', 'channels/'.$channel.'/commercial', $this->getToken($token), $options, $availableOptions);
      }
code: public function postCommercial($channel, $length = 30, $token = null)
      {
          $availableOptions = ['length'];
          $options = ['length' => $length];
  
          return $this->sendRequest('POST', 'channels/'.$channel.'/commercial', $this->getToken($token), $options, $availableOptions);
      }
code_tokens: public function postCommercial ( $ channel , $ length = 30 , $ token = null ) { $ availableOptions = [ 'length' ] ; $ options = [ 'length' => $ length ] ; return $ this -> sendRequest ( 'POST' , 'channels/' . $ channel . '/commercial' , $ this -> getToken ( $ token ) , $ options , $ availableOptions ) ; }
docstring: Run commercial.
  
  @param string $channel Channel name
  @param number $length  Commercial length
  @param string $token   Twitch token
  
  @return JSON Request result
docstring_tokens: Run commercial .