Custom tag %post_slug% for Image Attributes Pro

iap-custom-tag-post-slug

/**
 * Custom tag %post_slug% for Image Attributes Pro
 * 
 * @param $image_id The ID of the image that is being updated. 
 * @param $parent_post_id The post to which the image is attached (uploaded) to. 
 * @param $args (array) An array containing additional arguments.
 * 
 * @return string Slug of the post where the image is uploaded to.
 * 
 * @refer https://imageattributespro.com/codex/iaffpro_get_custom_attribute_tag_tagname/
 */
function iaffpro_get_custom_attribute_tag_post_slug( $image_id, $parent_post_id, $args = array() ) {
	return basename( get_permalink( $parent_post_id ) );
}