code: def get_sampler_pool():
      """Return the sampler pool and num_workers"""
      return SAMPLER_POOL, NUM_SAMPLER_WORKERS
  
imports: import atexit
  import gc
  import multiprocessing
  import os
  import queue
  import sys
  import time
  import traceback
  from enum import Enum
  from ..None import utils
  from ..base import dgl_warning, DGLError
  from .None import rpc
  from .constants import MAX_QUEUE_SIZE
  from .kvstore import close_kvstore, init_kvstore
  from .role import init_role
  from .rpc_client import connect_to_server
label_desc: Use image node_id 2 for calling a global function with example usage: get_sampler_pool() and returns: SAMPLER_POOL,  NUM_SAMPLER_WORKERS