code: def enum_gpu():
      """Lists the available GPUs."""
      return PythonWrapper.enum_gpu()
  
file_path: neoml/NeoML/Python/neoml/MathEngine.py
imports: import neoml.PythonWrapper
label_desc: Use image node_id 1 for calling a global function with example usage: enum_gpu() and returns: PythonWrapper