code: def gcr_image_pushed(project_id: str, image_id: str) -> bool:
      """Returns true if the supplied image has been pushed to the container registry
      for the supplied project, false otherwise.
  
      """
      return len(_gcr_list_tags(project_id, image_id)) > 0
  
imports: import json
  import subprocess
  from absl import logging
label_desc: Use image node_id 3 for calling a global function with example usage: gcr_image_pushed(project_id, image_id) and returns: unknown