code: def forward(ctx, params, features, compiled_extension):
      return compiled_extension.apply(params, features)
  
file_path: MONAI/monai/networks/layers/gmm.py
imports: from __future__ import annotations
  import torch
  from monai._extensions.loader import load_module
label_desc: Use image node_id 1 for calling the _ApplyFunc obj's underlying member method code with example usage: obj.forward(ctx, params, features, compiled_extension) and returns: compiled_extension