interface Twig_FunctionInterface

interface Twig_FunctionInterface {

  /**
   * Compiles a function.
   *
   * @return string The PHP code for the function
   */
  function compile();
  function needsEnvironment();
  function needsContext();
  function getSafe(Twig_Node $filterArgs);
  function setArguments($arguments);
  function getArguments();

}