code: def as_uri_map(self, artifact_map):
      return {
          key: {a.uri for a in artifacts}
          for key, artifacts in artifact_map.items()
      }
  
imports: import tensorflow
  from tfx import types
  from tfx.dsl.components.common import resolver
  from tfx.dsl.input_resolution import canned_resolver_functions
  from tfx.dsl.input_resolution.strategies import latest_artifact_strategy
  from tfx.orchestration import data_types
  from tfx.orchestration import metadata
  from tfx.types import channel
  from tfx.types import standard_artifacts
  from ml_metadata.proto import metadata_store_pb2
label_desc: Use image node_id 2 for calling the ResolverDriverTest obj's underlying member method code with example usage: obj.as_uri_map(artifact_map) and returns: unknown