class_docstr: Baseclass for all PointPens.
class_docstr_tok: ["Baseclass","for","all","PointPens","."]
docstr: Start a new sub path.
docstr_tok: ["Start","a","new","sub","path","."]
code: def beginPath(
      self, identifier: Optional[str] = None, **kwargs: Any
  ) -> None:
      """Start a new sub path."""
      raise NotImplementedError
  
imports: import math
  from typing import Any, Optional, Tuple, Dict
  from fontTools.pens.basePen import AbstractPen, PenError
  from fontTools.misc.transform import DecomposedTransform
label_desc: Use image node_id 1 for calling the AbstractPointPen obj's underlying member method code with example usage: obj.beginPath(identifier) without return types