class_docstr: Rendering engine parameter with ``'dot''`` default.
code: def __init__(
      self, *, engine: typing.Optional[str] = None, **kwargs
  ) -> None:
      super().__init__(**kwargs)
  
      if engine is not None:
          self.engine = engine
  
file_path: graphviz/graphviz/parameters/engines.py
imports: import typing
  from .None import base
label_desc: Use image node_id 1 to create a new Engine object from inherited base classes: base with example: obj = Engine()