Function libsession_session_id_free 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn libsession_session_id_free(
    string: *mut c_char,
)

Frees a string returned by this library, such as an ID from libsession_session_get_id.

Safety

string must be null or a pointer returned by this library that has not already been freed. The pointer must not be used after this call.