code: func ExecutionFromID(c context.Context, eid *dm.Execution_ID) *Execution {
  	ret := &Execution{}
  	ret.ID = invertedHexUint32(eid.Id)
  	ret.Attempt = AttemptKeyFromID(c, eid.AttemptID())
  	return ret
  }
docs: // ExecutionFromID produces an empty Execution model from the ExecutionID.