Templates.xml

<Ui xmlns="http://www.blizzard.com/wow/ui/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.blizzard.com/wow/ui/
..\FrameXML\UI.xsd">
	<Button name="PitBull4_UnitTemplate" virtual="true" inherits="SecureUnitButtonTemplate,SecureHandlerStateTemplate">
		<Attributes>
			<Attribute name="refreshUnitChange" type="string" value="local unit = self:GetAttribute('unit'); if unit then RegisterStateDriver(self, 'vehicleui', ('[@%s,unithasvehicleui]vehicle; novehicle'):format(unit)) else UnregisterStateDriver(self, 'vehicleui') end"/>
			<Attribute name="_onstate-vehicleui" type="string" value="local unit = self:GetAttribute('unit'); if unit and newstate == 'vehicle' and UnitPlayerOrPetInRaid(unit) and not UnitTargetsVehicleInRaidUI(unit) then self:SetAttribute('toggleForVehicle', false) else self:SetAttribute('toggleForVehicle', self:GetAttribute('pb4-vehicleswap')) end"/>
		</Attributes>
	</Button>
</Ui>