pk_key_from_private
actual fun pk_key_from_private(decryption: OlmPkDecryptionPointer, pubkey: ByteArray, privkey: ByteArray): ULong
actual fun pk_key_from_private(decryption: OlmPkDecryptionPointer, pubkey: ByteArray, privkey: ByteArray): ULong
expect fun pk_key_from_private(decryption: OlmPkDecryptionPointer, pubkey: ByteArray, privkey: ByteArray): ULong