func_code: def overlap(x1=0, y1=0, r1=1, x2=0, y2=0, r2=1):
      try:
          overlap = False
          if math.sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2) < r1 + r2:
              overlap = True
          return overlap
      except TypeError:
          pass