#[macro_export]
macro_rules! id_ptr {
($ptr: expr) => {
$crate::IdPtr::<_, _>::from_ptr($ptr)
};
($marker: ty; $ptr: expr) => {
$crate::IdPtr::<$marker, _>::from_ptr($ptr)
};
($marker: ty; $value: ty; $ptr: expr) => {
$crate::IdPtr::<$marker, $value>::from_ptr($ptr)
};
}