Call operator for objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, UIImage?)>.
objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, UIImage?)>
Available on ObjCBlock<Void Function(Pointer<Void>, UIImage?)>, provided by the ObjCBlock_ffiVoid_ffiVoid_UIImage_CallExtension extension