Call operator for objc.ObjCBlock<ffi.Bool Function(ffi.Pointer<ffi.Void>, NSPopover)>.
objc.ObjCBlock<ffi.Bool Function(ffi.Pointer<ffi.Void>, NSPopover)>
Available on ObjCBlock<Bool Function(Pointer<Void>, NSPopover)>, provided by the ObjCBlock_bool_ffiVoid_NSPopover_CallExtension extension