code: def set_attribute_label(series, resource_labels, attribute_key,
                          canonical_key=None, label_value_prefix=''):
      
      if attribute_key in resource_labels:
          if canonical_key is None:
              canonical_key = attribute_key
  
          series.resource.labels[canonical_key] = \
              label_value_prefix + resource_labels[attribute_key]
docs: Set a label to timeseries that can be used for monitoring
      :param series: TimeSeries object based on view data
      :param resource_labels: collection of labels
      :param attribute_key: actual label key
      :param canonical_key: exporter specific label key, Optional
      :param label_value_prefix: exporter specific label value prefix, Optional