docs: def bind_layers(lower, upper, __fval=None, **fval):
      """Bind 2 layers on some specific fields' values. It makes the packet being built  # noqa: E501
      and dissected when the arguments are present.
  
      This functions calls both bind_bottom_up and bind_top_down, with all passed arguments.  # noqa: E501
      Please have a look at their docs:
       - help(bind_bottom_up)
       - help(bind_top_down)
       """
      if __fval is not None:
          fval.update(__fval)
      bind_top_down(lower, upper, **fval)
      bind_bottom_up(lower, upper, **fval)