Function libsession_session_get_id 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn libsession_session_get_id(
    session: *const LibsessionSession,
    ret_id: *mut *mut c_char,
) -> LibsessionStatus

Copies a session ID into an allocated, NUL-terminated C string.

Free the returned string with libsession_session_id_free.

Safety

session must be null or a live session handle. ret_id must point to writable pointer storage. It is written only on success.