code: def __init__(self, raises=True):
      self.raises = raises
  
imports: from time import sleep
  from pytest import raises, fixture
  from threading import Event
  from promise import Promise, is_thenable, promisify, promise_for_dict
  from concurrent.futures import Future
  from threading import Thread
  from .utils import assert_exception
label_desc: Use image node_id 1 to create a new FakeThenPromise object  with example: obj = FakeThenPromise(raises)