golang-github-hashicorp-go-msgpack-dev 0.0~git20150518.0.fa3f638-4 (amd64 binary) in ubuntu bionic

 High Performance, Feature-Rich Idiomatic Go codec/encoding library
 for binc, msgpack, cbor, json. The idiomatic Go support is as seen
 in other encoding packages in the standard library (ie json, xml, gob, etc).