code: def vertices(self, current, previous=None):
      ox, oy = self.origin(current)
      rx, ry, angle, large, sweep, x, y = self._args
      x, y = x + ox, y + oy
      x0, y0 = current
      self.previous = x, y
      vertices = geometry.elliptical_arc(
          x0, y0, rx, ry, angle, large, sweep, x, y
      )
      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 Arc obj's underlying member method code with example usage: obj.vertices(current, previous) and returns: vertices