code: def __init__(self):
      self._zero()
  
imports: from math import sqrt, degrees, atan
  from fontTools.pens.basePen import BasePen, OpenContourError
  from fontTools.pens.momentsPen import MomentsPen
label_desc: Use image node_id 1 to create a new StatisticsBase object  with example: obj = StatisticsBase()