chore: bump a version

Author: martiliones

package.json

@@ -1,6 +1,6 @@
 {
   "name": "adamant-api",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "description": "JavaScript API library for the ADAMANT Blockchain",
   "keywords": [
     "adm",

src/helpers/utils.ts

@@ -0,0 +1,6 @@
+export const hasOwnProperty = <T extends object, K extends PropertyKey>(
+  obj: T,
+  prop: K
+): obj is T & Record<K, unknown> => {
+  return Object.prototype.hasOwnProperty.call(obj, prop);
+};