code: def parse_union_members(parser):
      members = []
  
      while True:
          members.append(parse_named_type(parser))
  
          if not skip(parser, TokenKind.PIPE):
              break
  
      return members
  
imports: from .None import ast
  from ..error import GraphQLSyntaxError
  from .lexer import Lexer, TokenKind, get_token_desc, get_token_kind_desc
  from .source import Source
label_desc: Use image node_id 49 for calling a global function with example usage: parse_union_members(parser) and returns: members