Function olm_sys::olm_inbound_group_session_is_verified

pub unsafe extern "C" fn olm_inbound_group_session_is_verified(
    session: *const OlmInboundGroupSession
) -> c_int

Check if the session has been verified as a valid session.

(A session is verified either because the original session share was signed, or because we have subsequently successfully decrypted a message.)

This is mainly intended for the unit tests, currently.