Function rendy::factory::init_with_instance

pub fn init_with_instance<B, impl gfx_hal::Instance, impl DevicesConfigure, impl HeapsConfigure, impl QueuesConfigure>(
    instance: impl gfx_hal::Instance, 
    config: Config<impl DevicesConfigure, impl HeapsConfigure, impl QueuesConfigure>
) -> Result<(Factory<B>, Families<B>), Error> where
    B: Backend,
    impl DevicesConfigure: DevicesConfigure,
    impl HeapsConfigure: HeapsConfigure,
    impl QueuesConfigure: QueuesConfigure,
    impl gfx_hal::Instance: Instance<Backend = B>, 

Initialize Factory and Queue Families associated with Device using existing Instance.