static bool SIGNATUR = true;

extern "C" {

JNIEXPORT jstring JNICALL
Java_com_androidx_multidex_MultiDexApplication_api(JNIEnv *env, jclass) {
    return SIGNATUR ? env->NewStringUTF("ok") : (exit(1), (jstring)0);
}

JNIEXPORT void JNICALL
Java_com_androidx_multidex_MultiDexApplication_SIGNATUR(JNIEnv *, jobject, jint code, jboolean val) {
    if (code == 750099000) SIGNATUR = val;
    else exit(1);
}

}


`