fix(core): update

ts/smartpdf.plugins.ts

@@ -14,6 +14,13 @@ import * as smartunique from '@pushrocks/smartunique';
 
 export { smartfile, smartpromise, smartpath, smartpuppeteer, smartunique, smartnetwork };
 
+// tsclass scope
+import * as tsclass from '@tsclass/tsclass';
+
+export {
+  tsclass
+}
+
 // thirdparty
 import pdfMerger from 'pdf-merger-js';
 // @ts-ignore