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