fix(core): update

ts/index.ts

@@ -1,3 +1,13 @@
 import * as plugins from './smartexpect.plugins';
 
-export let standardExport = 'Hi there! :) This is an exported string';
+import { Assertion } from './smartexpect.classes.assertion';
+
+export const expect = (baseArg: any) => {
+  const assertion = new Assertion(baseArg, 'sync');
+  return assertion;
+}
+
+export const expectAsync = (baseArg: any) => {
+  const assertion = new Assertion(baseArg, 'async');
+  return assertion;
+}