func_code: def overlap(x1=0, y1=0, r1=1, x2=0, y2=0, r2=1):
      import math
      r = r1 + r2
      d = (x1 - x2) ** 2 + (y1 - x2) ** 2
      d = math.sqrt(d)
      print((r, d))
      if r > d:
          return True
      else:
          return False