code: def apply(self):
      return []
  
imports: import copy
  from typing import Optional, Mapping, Set
  import tensorflow
  from tfx.dsl.input_resolution import resolver_op
  import tfx.types
  from tfx.types import standard_artifacts
label_desc: Use image node_id 1 for calling the EmptyArtifactList obj's underlying member method code with example usage: obj.apply() and returns: list