code: def loss_fn_from_model(model):
      # dep_fix
      if (
          version.parse(tf.__version__) < version.parse("2.2")
          or DISABLE_V2_BEHAVIOR
      ):
          return model.loss_functions[0].fn
      else:  # TF 2.2.0
          return model.compiled_loss._get_loss_object(
              model.compiled_loss._losses[0].name
          ).fn
  
imports: from .imports import *
  from subprocess import Popen
label_desc: Use image node_id 3 for calling a global function with example usage: loss_fn_from_model(model) and returns: model, model