class_docstr: A class used for accessing tfdbg v2 DebugEvent data on local filesystem.
  
  This class is a short-term hack, mirroring the EventMultiplexer for the main
  TensorBoard plugins (e.g., scalar, histogram and graphs.) As such, it only
  implements the methods relevant to the Debugger V2 pluggin.
  
  TODO(cais): Integrate it with EventMultiplexer and use the integrated class
  from MultiplexerDataProvider for a single path of accessing debugger and
  non-debugger data.
docstr: Retrieve the IDs of all outer graphs of a graph.
  
  Args:
    graph_id: Id of the graph being queried with respect to its outer
      graphs context.
  
  Returns:
    A list of graph_ids, ordered from outermost to innermost, including
      the input `graph_id` argument as the last item.
docstr_tok: ["Retrieve","the","IDs","of","all","outer","graphs","of","a","graph",".","Args",":","graph_id",":","Id","of","the","graph","being","queried","with","respect","to","its","outer","graphs","context",".","Returns",":","A","list","of","graph_ids",",","ordered","from","outermost","to","innermost",",","including","the","input","`","graph_id","`","argument","as","the","last","item","."]
code: def _getGraphStackIds(self, graph_id):
      """Retrieve the IDs of all outer graphs of a graph.
  
      Args:
        graph_id: Id of the graph being queried with respect to its outer
          graphs context.
  
      Returns:
        A list of graph_ids, ordered from outermost to innermost, including
          the input `graph_id` argument as the last item.
      """
      graph_ids = [graph_id]
      graph = self._reader.graph_by_id(graph_id)
      while graph.outer_graph_id:
          graph_ids.insert(0, graph.outer_graph_id)
          graph = self._reader.graph_by_id(graph.outer_graph_id)
      return graph_ids
  
imports: import threading
  from tensorboard import errors
label_desc: Use image node_id 16 for calling the DebuggerV2EventMultiplexer obj's underlying member method code with example usage: obj._getGraphStackIds(graph_id) and returns: graph_ids