docstr: Retrieve label id for the given image id and tag
  
  :param image_id: the desired image's id
  :param tag: matching tag name
  :return: label id
docstr_tok: ["Retrieve","label","id","for","the","given","image","id","and","tag",":","param","image_id",":","the","desired","image","'s","id",":","param","tag",":","matching","tag","name",":","return",":","label","id"]
code: def get_label_by_image_id(self, image_id: str, tag: str) -> str:
      """
      Retrieve label id for the given image id and tag
  
      :param image_id: the desired image's id
      :param tag: matching tag name
      :return: label id
      """
      pass
  
imports: from abc import ABCMeta, abstractmethod
  from enum import Enum
  from typing import Any, Dict, List, Optional
label_desc: Use image node_id 7 for calling the Datastore obj's underlying member method code with example usage: obj.get_label_by_image_id(image_id, tag) without return types