code: def num_gpus() -> int:
      try:
          return len(jax.devices("gpu"))
      except RuntimeError:
          return 0
  
imports: import os
  import jax
  from typing import Union, Optional
  import jaxlib.xla_extension
  import ivy
  from ivy.functional.backends.jax import JaxArray
  from ivy.functional.ivy.device import _shift_native_arrays_on_default_device, Profiler
label_desc: Use image node_id 11 for calling a global function with example usage: num_gpus() and returns: len, int