docs: def get_cached_resource_size(self, resource_name):
          """
          meterer.get_cached_resource_size(resource_name) -> dict
  
          Retrieve cached information about the given resource. The resulting
          dict has the following structure:
          {
              "size": int,                # Size of the resource
              "recorded_time": float,     # Unix timestamp when this was generated
          }
          """
          size_data = self.cache.get("SIZE:%s" % resource_name)
          if size_data is None:
              return None
  
          return json_loads(size_data)