function get_tags( $args = '' ) {
	$defaults = array( 'taxonomy' => 'post_tag' );
	$args     = wp_parse_args( $args, $defaults );

	$tags = get_terms( $args );

	if ( empty( $tags ) ) {
		$return = array();
		return $return;
	}

	/**
	 * Filters the array of term objects returned for the 'post_tag' taxonomy.
	 *
	 * @since 2.3.0
	 *
	 * @param WP_Term[]|int $tags Array of 'post_tag' term objects, or a count thereof.
	 * @param array         $args An array of arguments. @see get_terms()
	 */
	$tags = apply_filters( 'get_tags', $tags, $args );
	return $tags;
}