wp_get_attachment_id3_keys( WP_Post $attachment, string $context = ‘display’ ): string[]

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 *
 * @since 3.9.0
 *
 * @param WP_Post $attachment The current attachment, provided for context.
 * @param string  $context    Optional. The context. Accepts 'edit', 'display'. Default 'display'.
 * @return string[] Key/value pairs of field keys to labels.
 */
function wp_get_attachment_id3_keys( $attachment, $context = 'display' ) {
	$fields = array(
		'artist' => __( 'Artist' ),
		'album'  => __( 'Album' ),
	);

	if ( 'display' === $context ) {
		$fields['genre']            = __( 'Genre' );
		$fields['year']             = __( 'Year' );
		$fields['length_formatted'] = _x( 'Length', 'video or audio' );
	} elseif ( 'js' === $context ) {
		$fields['bitrate']      = __( 'Bitrate' );
		$fields['bitrate_mode'] = __( 'Bitrate Mode' );
	}

	/**
	 * Filters the editable list of keys to look up data from an attachment's metadata.
	 *
	 * @since 3.9.0

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