original_string: public function getSchemaExtension($name, ConnectionInterface $conn)
      {
          if (isset($this->extensions[$name])) {
              return call_user_func($this->extensions[$name], $conn);
          }
  
          return null;
      }
code: public function getSchemaExtension($name, ConnectionInterface $conn)
      {
          if (isset($this->extensions[$name])) {
              return call_user_func($this->extensions[$name], $conn);
          }
  
          return null;
      }
code_tokens: public function getSchemaExtension ( $ name , ConnectionInterface $ conn ) { if ( isset ( $ this -> extensions [ $ name ] ) ) { return call_user_func ( $ this -> extensions [ $ name ] , $ conn ) ; } return null ; }
docstring: Return the schema extension object.
  
  @param string              $name
  
  @param ConnectionInterface $conn
  
  @return DbSchemaInterface
docstring_tokens: Return the schema extension object .