code: def test_balance_even_with_replica():
      dependencies = {"a": 1}
      dependency_placement = [["a"], ["a"]]
      task_placement = [[["a"], ["a"]], []]
  
      def _correct_placement(actual):
          actual_task_counts = [len(placed) for placed in actual]
          return actual_task_counts == [
              1,
              1,
          ]
  
      _run_dependency_balance_test(
          dependencies,
          dependency_placement,
          task_placement,
          _correct_placement,
      )
  
imports: from __future__ import annotations
  import asyncio
  import contextlib
  import itertools
  import logging
  import math
  import random
  import weakref
  from collections import defaultdict
  from collections.abc import Callable, Coroutine, Iterable, Mapping, Sequence
  from operator import mul
  from time import sleep
  import pytest
  from tlz import merge, sliding_window
  import dask
  from dask.utils import key_split, parse_bytes
  from distributed import Client, Event, Lock, Nanny, Scheduler, Worker, profile, wait, worker_client
  from distributed.client import Future
  from distributed.compatibility import LINUX
  from distributed.core import Status
  from distributed.metrics import time
  from distributed.system import MEMORY_LIMIT
  from distributed.utils import wait_for
  from distributed.utils_test import NO_AMM, BlockedGetData, captured_logger, freeze_batched_send, gen_cluster, gen_nbytes, inc, nodebug_setup_module, nodebug_teardown_module, slowadd, slowidentity, slowinc, wait_for_state
  from distributed.worker_state_machine import ExecuteSuccessEvent, FreeKeysEvent, StealRequestEvent
label_desc: Use image node_id 6 for calling a global function with example usage: test_balance_even_with_replica() and returns: unknown