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function get_taxonomy_labels( $tax ) {
	$tax->labels = (array) $tax->labels;

	if ( isset( $tax->helps ) && empty( $tax->labels['separate_items_with_commas'] ) ) {
		$tax->labels['separate_items_with_commas'] = $tax->helps;
	}

	if ( isset( $tax->no_tagcloud ) && empty( $tax->labels['not_found'] ) ) {
		$tax->labels['not_found'] = $tax->no_tagcloud;
	}

	$nohier_vs_hier_defaults = WP_Taxonomy::get_default_labels();

	$nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name'];

	$labels = _get_custom_object_labels( $tax, $nohier_vs_hier_defaults );

	$taxonomy = $tax->name;

	$default_labels = clone $labels;

	/**
	 * Filters the labels of a specific taxonomy.
	 *
	 * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
	 *
	 * Possible hook names include:
	 *
	 *  - `taxonomy_labels_category`
	 *  - `taxonomy_labels_post_tag`
	 *
	 * @since 4.4.0
	 *
	 * @see get_taxonomy_labels() for the full list of taxonomy labels.
	 *
	 * @param object $labels Object with labels for the taxonomy as member variables.
	 */
	$labels = apply_filters( "taxonomy_labels_{$taxonomy}", $labels );

	// Ensure that the filtered labels contain all required default values.
	$labels = (object) array_merge( (array) $default_labels, (array) $labels );

	return $labels;
}