src/Steemit.php
public function exec($do, array $params)
    {
        $body = call_user_func_array(array($this->operations, $do), $params);

        return $this->broadcast($body);
    }
public function exec($do, array $params)
    {
        $body = call_user_func_array(array($this->operations, $do), $params);

        return $this->broadcast($body);
    }
Execute an operation to broadcast!

@param  string $do     Name of the operation
@param  array  $params Required parameters
@return array