/**
* @file Scaling Component
*/
-import { isNullOrUndefined } from 'util';
import { HttpHeaders } from '@angular/common/http';
import { Component, Injector, Input, OnInit } from '@angular/core';
import { AbstractControl, FormBuilder, FormGroup, Validators } from '@angular/forms';
import { APIURLHEADER, ERRORDATA, MODALCLOSERESPONSEDATA, URLPARAMS } from 'CommonModel';
import { environment } from 'environment';
import { RestService } from 'RestService';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
import { DF, SCALING, VNFD } from 'VNFDModel';
import { InstanceData, VNFInstanceDetails } from 'VNFInstanceModel';
/**