parameters: (t)
docstring: type_qualifier : CONST
                        | VOLATILE
docstring_summary: type_qualifier : CONST
                        | VOLATILE
docstring_tokens: type_qualifier : CONST | VOLATILE
function: def p_type_qualifier(t):
      '''type_qualifier : CONST
                        | VOLATILE'''
      pass
function_tokens: def p_type_qualifier ( t ) : pass