Function pxs_gethost 

#[unsafe(no_mangle)]
pub extern "C" fn pxs_gethost(
    runtime: pxs_VarT,
    var: pxs_VarT,
) -> *mut c_void

Get the HostPointer universally supported for:

• Objects that have _pxs_ptr assigned.
• Integers (signed and unsigned)
• HostObjects

All other types will return NULL.