code: def export_params_for_metrics(self):
      self._export_params_for_metrics = True
  
      # Export copies of parameters
      for param in self.params:
          param_copy_ref = self.get_next_blob_reference(
              str(param).split("/")[-1] + "_copy"
          )
          self.model.add_metric_field(
              str(param.parameter), param_copy_ref
          )
  
imports: import logging
  from collections import namedtuple
  import numpy
  from caffe2.proto import caffe2_pb2
  from caffe2.python import core, schema, scope, utils, workspace
  from caffe2.python.layers.tags import TagContext
label_desc: Use image node_id 24 for calling the ModelLayer obj's underlying member method code with example usage: obj.export_params_for_metrics() without return types