is there a way to manually terminate graph?

[miniboxhaha]

i am build a mulit agent system use supervison schema with nodejs api.
first i try use webworker and call webworker.terminate, it's working as my expect. but for some data transfer problem, use worker seems not good.
so i try to use stream, and in for loop call stream.cancel. it ok, but not clean and crisp compare to worker.terminate.

root supervisor
let last_chunk
  const stream = await compiledSuperGraph.stream({ messages }, config)
  for await (const chunk of stream) {
      if(!use_get_sender_loading()){
          stream.cancel()
      }
      last_chunk = chunk
  }

//////////////////////////////////////////////////////////
middle supervisor
let last_chunk
  const stream = await target_management_graph.stream({ messages:state.instructions }, {streamMode:"values"})
  for await (const chunk of stream) {
      if(!use_get_sender_loading()){
          stream.cancel()
      }
      last_chunk = chunk
  }

is there any better way to do?