import { HttpClient, HttpParams } from '@angular/common/http';
import { Observable } from 'rxjs';
import { AttachmentsService } from './attachments.service';
export declare class ApiService {
    private http;
    private attachmentsService;
    constructor(http: HttpClient, attachmentsService: AttachmentsService);
    fetch(api: string, params?: HttpParams): Observable<any>;
    download(api: string, params?: HttpParams): Observable<Blob>;
    put(api: string, body: any, params?: {}): Observable<any>;
    post(api: string, body: any, fieldName?: any, params?: {}): Observable<any>;
    delete(api: string, payload: any, join?: boolean): Observable<Object>;
}
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