parameters: (args, lparen=LParen(), rparen=RParen())
return_statement: return node
docstring: A parenthesised argument list, used by Call()
docstring_summary: A parenthesised argument list, used by Call()
docstring_tokens: A parenthesised argument list used by Call ()
function: def ArgList(args, lparen=LParen(), rparen=RParen()):
      """A parenthesised argument list, used by Call()"""
      node = Node(syms.trailer, [lparen.clone(), rparen.clone()])
      if args:
          node.insert_child(1, Node(syms.arglist, args))
      return node
function_tokens: def ArgList ( args , lparen = LParen ( ) , rparen = RParen ( ) ) : node = Node ( syms . trailer , [ lparen . clone ( ) , rparen . clone ( ) ] ) if args : node . insert_child ( 1 , Node ( syms . arglist , args ) ) return node