Function: `projection-type-child-p`

projection-type-child-p is a function alias for projection-type--eieio-childp, defined in projection-core-type.el.

This function is obsolete since 25.1; use (cl-typep ... 'projection-type) instead

Signature

(projection-type-child-p OBJ)

Return non-nil if OBJ is an object of type projection-type(var)/projection-type(fun) or a subclass.