olm_create_outbound_session
external fun olm_create_outbound_session(session: OlmSessionPointer?, account: OlmAccountPointer?, their_identity_key: Pointer?, their_identity_key_length: NativeSize, their_one_time_key: Pointer?, their_one_time_key_length: NativeSize, random: Pointer?, random_length: NativeSize): NativeSize