func_code: _A = None
  
  
  def overlap(x1=_A, y1=_A, r1=_A, x2=_A, y2=_A, r2=_A):
      if x1 is _A:
          x1 = 0
      if y1 is _A:
          y1 = 0
      if r1 is _A:
          r1 = 1
      if x2 is _A:
          x2 = 0
      if y2 is _A:
          y2 = 0
      if r2 is _A:
          r2 = 1
      return (x1 - x2) ** 2 + (y1 - y2) ** 2 < (r1 + r2) ** 2