'memberTypes #1': {|xml|| -5 |}. 'memberTypes #2': {|xml|| b |}. 'memberTypes #3'(fail): {|xml|| ... |}. 'memberTypes #4'(fail): {|xml|| |}. 'nested #1': {|xml|| a |}. 'nested #2': {|xml|| e |}. 'nested #3'(fail): {|xml|| |}. 'nested #4'(fail): {|xml|| 12 |}.