code: func IsInGOPATH(thePath string) bool {
  	for _, gopath := range GetGOPATHs() {
  		if strings.Contains(thePath, filepath.Join(gopath, "src")) {
  			return true
  		}
  	}
  	return false
  }
docs: // IsInGOPATH checks whether the path is inside of any GOPATH or not