Example

if ([["ItemGoldBar",3]] call player_checkAndRemoveItems) then {
    _box1 = createVehicle ["USVehicleBox",[coord1,coord2,0],[], 0, "CAN_COLLIDE"];
    clearWeaponCargoGlobal _box1;
    clearMagazineCargoGlobal _box1;
    _box1 addWeaponCargoGlobal ["ItemGoldBar",5];
    cutText[format["Box has been spawned within 5 meters"], "PLAIN DOWN"];
} else {
    cutText[format["U don't have the required ammount of gold.."], "PLAIN DOWN"];
};