code: def get_nested_plot_frame(obj, key_map, cached=False):
      
      clone = obj.map(lambda x: x)
  
      # Ensure that DynamicMaps in the cloned frame have
      # identical callback inputs to allow memoization to work
      for it1, it2 in zip(obj.traverse(lambda x: x), clone.traverse(lambda x: x)):
          if isinstance(it1, DynamicMap):
              with disable_constant(it2.callback):
                  it2.callback.inputs = it1.callback.inputs
      with item_check(False):
          return clone.map(lambda x: get_plot_frame(x, key_map, cached=cached),
                           [DynamicMap, HoloMap], clone=False)
docs: Extracts a single frame from a nested object.
  
      Replaces any HoloMap or DynamicMap in the nested data structure,
      with the item corresponding to the supplied key.
  
      Args:
          obj: Nested Dimensioned object
          key_map: Dictionary mapping between dimensions and key value
          cached: Whether to allow looking up key in cache
  
      Returns:
          Nested datastructure where maps are replaced with single frames