From cppreference.com
template<classT>constevalstd::meta::inforeflect_object(T&expr);(since C++26)Returns a reflection that represents the object referred to by expr.
The program is ill-formed if T is not an object type.
Parameters
r - an lvalue that refers to a valid object Return value
A reflection that represents an object.
Exceptions
Throws
unless a glvalue constant expression E that refers to the object expr is a valid template argument for a template parameter of type T&.
Example
See also