func_code: def overlap(x1=0, y1=0, r1=1, x2=0, y2=0, r2=1):
      try:
          overlap = False
          if math.sqrt((x1 - x0) ** 2 + (y1 - y0) ** 2) < R0 + R1:
              overlap = True
          return overlap
      except TypeError:
          pass