code: func (s *Signature) CreatedByString(fullPath bool) string {
  	created := s.CreatedBy.Func.PkgDotName()
  	if created == "" {
  		return ""
  	}
  	created += " @ "
  	if fullPath {
  		created += s.CreatedBy.FullSrcLine()
  	} else {
  		created += s.CreatedBy.SrcLine()
  	}
  	return created
  }
docs: // CreatedByString return a short context about the origin of this goroutine
  // signature.