How to use rg_round_respawn?

[WhiteFang]

Hi. I've been trying to use ReApi to swap players and then respawn them.
Been using this code for swap and it works but I don't know how to do for respawn.. I need to respawn players who are alive in both teams and ignore spectators.

#include <amxmodx>
#include <reapi>

public plugin_init()
{
register_concmd("amx_swap","ConsoleCommand_SwapTeams", ADMIN_KICK);
}

public ConsoleCommand_SwapTeams()
{
rg_swap_all_players();
rg_round_respawn(0);
}