code: def get_reconciler(config, metrics, rrset_channel, changes_channel, **kw):
      
      builder = reconciler.GDNSReconcilerBuilder(
          config, metrics, rrset_channel, changes_channel, **kw)
      return builder.build_reconciler()
docs: Get a GDNSReconciler client.
  
      A factory function that validates configuration, creates an auth
      and :class:`GDNSClient` instance, and returns a GDNSReconciler
      provider.
  
      Args:
          config (dict): Google Cloud Pub/Sub-related configuration.
          metrics (obj): :interface:`IMetricRelay` implementation.
          rrset_channel (asyncio.Queue): Queue from which to consume
              record set messages to validate.
          changes_channel (asyncio.Queue): Queue to publish message to
              make corrections to Cloud DNS.
          kw (dict): Additional keyword arguments to pass to the
              Reconciler.
      Returns:
          A :class:`GDNSReconciler` instance.