/usr/share/gocode/src/ is in golang-github-googleapis-gax-go-dev 0.0~git20170902.8c160ca-1.
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/usr/share/gocode/src/github.com/
/usr/share/gocode/src/github.com/googleapis/
/usr/share/gocode/src/github.com/googleapis/gax-go/
/usr/share/gocode/src/github.com/googleapis/gax-go/call_option.go
/usr/share/gocode/src/github.com/googleapis/gax-go/call_option_test.go
/usr/share/gocode/src/github.com/googleapis/gax-go/gax.go
/usr/share/gocode/src/github.com/googleapis/gax-go/header.go
/usr/share/gocode/src/github.com/googleapis/gax-go/header_test.go
/usr/share/gocode/src/github.com/googleapis/gax-go/invoke.go
/usr/share/gocode/src/github.com/googleapis/gax-go/invoke_test.go
/usr/share/gocode/src/github.com/googleapis/gax-go/path_template.go
/usr/share/gocode/src/github.com/googleapis/gax-go/path_template_parser.go
/usr/share/gocode/src/github.com/googleapis/gax-go/path_template_test.go