code: def file(self, entity, digest):
      # TODO?
      return "ARTIFACT %s" % digest, 200
  
file_path: wandb/tests/pytest_tests/unit_tests_old/utils/artifact_emu.py
imports: import copy
label_desc: Use image node_id 6 for calling the ArtifactEmulator obj's underlying member method code with example usage: obj.file(entity, digest) and returns: unknown,  int