fun <T> loadClass(name: String): T = try {
    @Suppress("UNCHECKED_CAST")
    Class.forName("org.kethereum.crypto.impl.$name").newInstance() as T
} catch (e: ClassNotFoundException) {
    throw RuntimeException("There is not implementation found for $name - you need to either depend on crypto_impl_spongycastle or crypto_impl_bouncycastle")
}