code: def artifact_dict_if_exists(self, step, name):
      return self.artifact_dict(step, name)
  
imports: import sys
  import subprocess
  import json
  from collections import namedtuple
  from tempfile import NamedTemporaryFile
  from metaflow.includefile import IncludedFile
  from metaflow.util import is_stringish
  from .None import MetaflowCheck, AssertArtifactFailed, AssertLogFailed, truncate, AssertCardFailed
label_desc: Use image node_id 4 for calling the CliCheck obj's underlying member method code with example usage: obj.artifact_dict_if_exists(step, name) and returns: self