code: def vertices(self, current, last_control_point=None):
      ox, oy = self.origin(current)
      x1, y1, x2, y2 = self._args
      x0, y0 = current
      x1, y1 = x1 + ox, y1 + oy
      x2, y2 = x2 + ox, y2 + oy
      self.previous = x1, y1
      vertices = geometry.quadratic((x0, y0), (x1, y1), (x2, y2))
  
      return vertices[1:]
  
imports: import re
  import math
  import numpy
  from .None import geometry
  from .geometry import epsilon
  from .transformable import Transformable
label_desc: Use image node_id 2 for calling the Quadratic obj's underlying member method code with example usage: obj.vertices(current, last_control_point) and returns: vertices