code: def is_single_gpu():
      ngpus = len(numba.cuda.gpus)
      if ngpus > 1:
          return False
      else:
          return True
  
file_path: cugraph/python/cugraph/cugraph/dask/common/mg_utils.py
imports: import os
  import gc
  import numba.cuda
  from cugraph.dask.common.read_utils import MissingUCXPy
label_desc: Use image node_id 3 for calling a global function with example usage: is_single_gpu() and returns: False, True