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

3382	 *3383	 * @param string $html     Empty variable to be replaced with shortcode markup.3384	 * @param array  $attr     Attributes of the shortcode. See {@see wp_audio_shortcode()}.3385	 * @param string $content  Shortcode content.3386	 * @param int    $instance Unique numeric ID of this audio shortcode instance.3387	 */3388	$override = apply_filters( 'wp_audio_shortcode_override', '', $attr, $content, $instance );3389 3390	if ( '' !== $override ) {3391		return $override;3392	}3393 3394	$audio = null;