code: def force_spill():
      from cudf.core.buffer.spill_manager import get_global_manager
  
      manager = get_global_manager()
  
      # 24 bytes
      df = cudf.DataFrame({"a": [1, 2, 3]})
  
      return manager.spill_to_device_limit(1)
  
imports: from __future__ import annotations
  import os
  import pytest
  from distributed.utils_test import gen_cluster
label_desc: Use image node_id 1 for calling a global function with example usage: force_spill() and returns: manager