code: def list_runs(self, ctx=None, *, experiment_id):
      self._validate_context(ctx)
      self._validate_experiment_id(experiment_id)
      return [
          provider.Run(
              run_id=run,  # use names as IDs
              run_name=run,
              start_time=self._get_first_event_timestamp(run),
          )
          for run in self._multiplexer.Runs()
      ]
  
imports: import base64
  import collections
  import json
  import random
  from tensorboard import errors
  from tensorboard.compat.proto import summary_pb2
  from tensorboard.data import provider
  from tensorboard.util import tb_logging
  from tensorboard.util import tensor_util
label_desc: Use image node_id 10 for calling the MultiplexerDataProvider obj's underlying member method code with example usage: obj.list_runs(ctx) and returns: unknown