code: def get_data_dependent_node_ids(self) -> Set[str]:
      return set()
  
imports: from typing import Mapping, Set
  import tensorflow
  from tfx.dsl.control_flow import for_each
  from tfx.dsl.control_flow import for_each_internal
  from tfx.dsl.input_resolution import resolver_function
  from tfx.dsl.input_resolution import resolver_op
  import tfx.types
  from tfx.types import resolved_channel
  from tfx.utils import typing_utils
label_desc: Use image node_id 2 for calling the DummyChannel obj's underlying member method code with example usage: obj.get_data_dependent_node_ids() and returns: set