import {Observable} from 'rxjs';

export interface SyncState {

    url: string;
    cancel(): void;
    onError: Observable<any>;
    onChange: Observable<any>;
}
import {Observable} from "rxjs";

export interface SyncState {

    url: string;

    cancel(): void;

    onError: Observable<any>;

    onChange: Observable<any>;

}
--- 
+++ 
@@ -1,13 +1,9 @@
-import {Observable} from "rxjs";
+import {Observable} from 'rxjs';
 
 export interface SyncState {
 
     url: string;
-
     cancel(): void;
-
     onError: Observable<any>;
-
     onChange: Observable<any>;
-
 }
Adjust to code style rules
