public function count_users( $role ) {

		$count_users = count_users();

		$avail_roles = array();

		foreach ( $count_users['avail_roles'] as $count_role => $count ) {
			$avail_roles[ $count_role ] = $count;
		}

		if ( empty( $role ) ) {
			return $avail_roles;
		}

		if ( ! isset( $avail_roles[ $role ] ) ) {
			$avail_roles[ $role ] = 0;
		}

		return $avail_roles[ $role ];
	}