parameters: (self, graph_view)
docstring: Initialize.
  
      Args:
        graph_view: (loading_graph_view.LoadingGraphView) the graph to visualize.
docstring_summary: Initialize.
docstring_tokens: Initialize .
function: def __init__(self, graph_view):
      """Initialize.
  
      Args:
        graph_view: (loading_graph_view.LoadingGraphView) the graph to visualize.
      """
      self._graph_view = graph_view
      self._global_start = None
function_tokens: def __init__ ( self , graph_view ) : self . _graph_view = graph_view self . _global_start = None