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