code: def _gen_delta_depend(self, path, derivative, multiplier, prettyname,
                            device):
          
          primary_delta = derivative[path]
          shortpath = ".".join(path.split(".")[:-1])
          basename = path.split(".")[-1]
          secondary_delta = None
          if basename in self.DIVIDERS.keys():
              mateKey = ".".join([shortpath, self.DIVIDERS[basename]])
          else:
              return
          if mateKey in derivative.keys():
              secondary_delta = derivative[mateKey]
          else:
              return
  
          # If we find a corresponding secondary_delta, publish a metric
          if primary_delta > 0 and secondary_delta > 0:
              value = (float(primary_delta) / secondary_delta) * multiplier
              self._replace_and_publish(path, prettyname, value, device)
docs: For some metrics we need to divide the delta for one metric
          with the delta of another.
          Publishes a metric if the convertion goes well.