any new version of extract_asn1_from_spec compatible with 3GPP38.473
extract_asn1_from_spec
that get from Wireshark v2.6.4 doesn't work with 3GPP38.473. There is no ASN1START tags in the specifications. It's not possibe to use this tool to extract ASN1 information from the specification.
Is there any other new tool available