code: def __init__(self, symfunc):
      self._symfunc = symfunc
      self._bezfuncs = {}
  
imports: from fontTools.pens.basePen import BasePen
  from functools import partial
  from itertools import count
  import sympy
  import sys
label_desc: Use image node_id 1 to create a new _BezierFuncsLazy object from inherited base classes: dict with example: obj = _BezierFuncsLazy(symfunc)