code: def get_plugin_apps(self):
      
      return {
          _ACK_ROUTE: self._serve_ack,
          _COMM_ROUTE: self._serve_comm,
          _DEBUGGER_GRPC_HOST_PORT_ROUTE: self._serve_debugger_grpc_host_port,
          _DEBUGGER_GRAPH_ROUTE: self._serve_debugger_graph,
          _GATED_GRPC_ROUTE: self._serve_gated_grpc,
          _TENSOR_DATA_ROUTE: self._serve_tensor_data,
          _SOURCE_CODE_ROUTE: self._serve_source_code,
      }
docs: Obtains a mapping between routes and handlers.
  
      This function also starts a debugger data server on separate thread if the
      plugin has not started one yet.
  
      Returns:
        A mapping between routes and handlers (functions that respond to
        requests).