def METHOD_NAME(cls):
    cls.data = _hexdecode(b'1F8B' # magic
                          b'080880C185560003' # header
                          b'68656C6C6F2E74787400' # filename
                          b'F348CDC9C95728CF2FCA4951E40200' # data
                          b'41E4A9B20D000000') # checksum
    cls.p = Gzip(cls.data)