'wpsso_json_array_schema_page_type_ids' ( $page_type_ids, $mod )

'wpsso_json_data_https_schema_org_{item_type}' ( $json_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_itemlist_posts_args' ( $posts_args, $mod )

'wpsso_json_ld_search_url' ( $url, $mod, $add_page, $src_id )

'wpsso_json_media_main_prop' ( $main_prop, $mod )	// Empty string by default.

'wpsso_json_prop_https_schema_org_additionaltype' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_prop_https_schema_org_aggregaterating' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_prop_https_schema_org_graph' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_prop_https_schema_org_potentialaction' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_prop_https_schema_org_review' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )

'wpsso_json_prop_https_schema_org_sameas' ( $prop_data, $mod, $mt_og, $page_type_id, $is_main )