Function libflatpak_sys::flatpak_installation_add_remote

pub unsafe extern "C" fn flatpak_installation_add_remote(
    self_: *mut FlatpakInstallation,
    remote: *mut FlatpakRemote,
    if_needed: gboolean,
    cancellable: *mut GCancellable,
    error: *mut *mut GError,
) -> gboolean