Function alice_signal_protocol_parameters_create 

pub unsafe extern "C" fn alice_signal_protocol_parameters_create(
    parameters: *mut *mut alice_signal_protocol_parameters,
    our_identity_key: *mut ratchet_identity_key_pair,
    our_base_key: *mut ec_key_pair,
    their_identity_key: *mut ec_public_key,
    their_signed_pre_key: *mut ec_public_key,
    their_one_time_pre_key: *mut ec_public_key,
    their_ratchet_key: *mut ec_public_key,
) -> c_int