code: def hetero_nn(ctx, role):
      ...
  
imports: import logging
  from fate.arch import Context
  from fate.components.core import GUEST, HOST, Role, cpn
  from fate.components.components.nn.component_utils import train_procedure, predict_procedure
label_desc: Use image node_id 1 for calling a global function with example usage: hetero_nn(ctx, role) without return types