/**
* @file NS Compose Component
*/
-import { isNullOrUndefined } from 'util';
import { HttpHeaders } from '@angular/common/http';
import { Component, ElementRef, Injector, ViewChild, ViewEncapsulation } from '@angular/core';
import { ActivatedRoute, Router } from '@angular/router';
Tick, TickPath, VLC, VLD, VNFPROFILE
} from 'NSDModel';
import { RestService } from 'RestService';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
import { VNFD, VNFData } from 'VNFDModel';
/**