apply_filters( 'wp_audio_shortcode_override', string $html, array $attr, string $content, int $instance )

3546	 *3547	 * @param string $html     Empty variable to be replaced with shortcode markup.3548	 * @param array  $attr     Attributes of the shortcode. See {@see wp_audio_shortcode()}.3549	 * @param string $content  Shortcode content.3550	 * @param int    $instance Unique numeric ID of this audio shortcode instance.3551	 */3552	$override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instance );3553 3554	if ( '' !== $override ) {3555		return $override;3556	}3557 3558	$audio = null;