1 ## message with a 'name' header field and unknown 'unkn' field

     2 

     3 ## VALID_HEADER includes a LENGTH Header and LENGTH Body

     4 VALID_HEADER method_call

     5 REQUIRED_FIELDS

     6 

     7 HEADER_FIELD UNKNOWN

     8 TYPE DICT

     9 LENGTH Dict

    10 START_LENGTH Dict

    11 STRING 'int32'

    12 TYPE INT32

    13 INT32 0x12345678

    14 END_LENGTH Dict

    15 

    16 ALIGN 8

    17 END_LENGTH Header

    18 START_LENGTH Body

    19 END_LENGTH Body