code: def PluginRunToTagToContent(self, plugin_name):
      
      mapping = {}
      for run in self.Runs():
        try:
          tag_to_content = self.GetAccumulator(run).PluginTagToContent(
              plugin_name)
        except KeyError:
          # This run lacks content for the plugin. Try the next run.
          continue
        mapping[run] = tag_to_content
      return mapping
docs: Returns a 2-layer dictionary of the form {run: {tag: content}}.
  
      The `content` referred above is the content field of the PluginData proto
      for the specified plugin within a Summary.Value proto.
  
      Args:
        plugin_name: The name of the plugin for which to fetch content.
  
      Returns:
        A dictionary of the form {run: {tag: content}}.