code: public function like($postId, $reblogKey)
      {
          $options = array('id' => $postId, 'reblog_key' => $reblogKey);
  
          return $this->postRequest('v2/user/like', $options, false);
      }
docs: Like a post
  
  @param int    $postId    the id of the post
  @param string $reblogKey the reblog_key of the post
  
  @return array the response array