class_docstr: DOT graph for relay IR.
  
  See also :py:class:`tvm.contrib.relay_viz.dot.DotPlotter`
  
  Parameters
  ----------
  name: str
      name of this graph.
  graph_attr: Optional[Dict[str, str]]
      key-value pairs for the graph.
  node_attr: Optional[Dict[str, str]]
      key-value pairs for all nodes.
  edge_attr: Optional[Dict[str, str]]
      key-value pairs for all edges.
  get_node_attr: Optional[Callable[[VizNode], Dict[str, str]]]
      A callable returning attributes for the node.
code: def digraph(self):
      return self._digraph
  
file_path: tvm/python/tvm/contrib/relay_viz/dot.py
imports: from typing import Any, Callable, Dict
  from .interface import DefaultVizParser, Plotter, VizEdge, VizGraph, VizNode
label_desc: Use image node_id 4 for calling the DotGraph obj's underlying member method code with example usage: obj.digraph() and returns: self