parameters: (p)
docstring: parameters : LPAR RPAR
                    | LPAR varargslist RPAR
docstring_summary: parameters : LPAR RPAR
                    | LPAR varargslist RPAR
docstring_tokens: parameters : LPAR RPAR | LPAR varargslist RPAR
function: def p_parameters(p):
      """parameters : LPAR RPAR
                    | LPAR varargslist RPAR"""
      if len(p) == 3:
          p[0] = []
      else:
          p[0] = p[2]
function_tokens: def p_parameters ( p ) : if len ( p ) == 3 : p [ 0 ] = [ ] else : p [ 0 ] = p [ 2 ]