public static function isDismissed( $id ) {
		$dismissed = false;
		$id = sanitize_key( $id );

		// Get all of the notices this user has dismissed.
		$dismissals = get_user_meta( get_current_user_id(), 'boldgrid_dismissed_admin_notices' );

		// Loop through all of the dismissed notices. If we find our $id, then mark bool and break.
		foreach ( $dismissals as $dismissal ) {
			if ( $id === $dismissal['id'] ) {
				$dismissed = true;
				break;
			}
		}

		return $dismissed;
	}