mod

type Module struct {
	Path       string       // module path
	Query      string       // version query corresponding to this version
	Version    string       // module version
	Versions   []string     // available module versions
	Replace    *Module      // replaced by this module
	Time       *time.Time   // time version was created
	Update     *Module      // available update (with -u)
	Main       bool         // is this the main module?
	Indirect   bool         // module is only indirectly needed by main module
	Dir        string       // directory holding local copy of files, if any
	GoMod      string       // path to go.mod file describing module, if any
	GoVersion  string       // go version used in module
	Retracted  []string     // retraction information, if any (with -retracted or -u)
	Deprecated string       // deprecation message, if any (with -u)
	Error      *ModuleError // error loading module
	Sum        string       // checksum for path, version (as in go.sum)
	GoModSum   string       // checksum for go.mod (as in go.sum)
	Origin     any          // provenance of module
	Reuse      bool         // reuse of old module info is safe
}

type ModuleError struct {
	Err string // the error itself
}