@abstractmethod
  def on_merge(self, to_be_merged, merge_result, context):
    pass
Returns "identity" versions of the JavaScript i18n functions -- i.e.,
dataset/ETHPy150Open GoogleCloudPlatform/DataflowPythonSDK/google/cloud/dataflow/transforms/trigger.py/TriggerFn.on_merge--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/vendor/django/views/i18n.py/null_javascript_catalog