code: def get_synced_filter_connector(ctx: ConnectorContext):
      filter_specifier = ctx.config.get("observation_filter")
      if filter_specifier == "MeanStdFilter":
          return MeanStdObservationFilterAgentConnector(ctx, clip=None)
      elif filter_specifier == "ConcurrentMeanStdFilter":
          return ConcurrentMeanStdObservationFilterAgentConnector(
              ctx, clip=None
          )
      elif filter_specifier == "NoFilter":
          return None
      else:
          raise Exception(
              "Unknown observation_filter: " + str(filter_specifier)
          )
  
imports: import logging
  from typing import Any, Tuple, TYPE_CHECKING
  from ray.rllib.connectors.action.clip import ClipActionsConnector
  from ray.rllib.connectors.action.immutable import ImmutableActionsConnector
  from ray.rllib.connectors.action.lambdas import ConvertToNumpyConnector
  from ray.rllib.connectors.action.normalize import NormalizeActionsConnector
  from ray.rllib.connectors.action.pipeline import ActionConnectorPipeline
  from ray.rllib.connectors.agent.clip_reward import ClipRewardAgentConnector
  from ray.rllib.connectors.agent.obs_preproc import ObsPreprocessorConnector
  from ray.rllib.connectors.agent.pipeline import AgentConnectorPipeline
  from ray.rllib.connectors.agent.state_buffer import StateBufferConnector
  from ray.rllib.connectors.agent.view_requirement import ViewRequirementAgentConnector
  from ray.rllib.connectors.connector import Connector, ConnectorContext
  from ray.rllib.connectors.registry import get_connector
  from ray.rllib.connectors.agent.mean_std_filter import MeanStdObservationFilterAgentConnector, ConcurrentMeanStdObservationFilterAgentConnector
  from ray.util.annotations import PublicAPI, DeveloperAPI
  from ray.rllib.connectors.agent.synced_filter import SyncedFilterAgentConnector
label_desc: Use image node_id 7 for calling a global function with example usage: get_synced_filter_connector(ctx) and returns: MeanStdObservationFilterAgentConnector, ConcurrentMeanStdObservationFilterAgentConnector, None