import { Path } from '@angular-devkit/core';
import { Tree } from '@angular-devkit/schematics';
import { Credentials } from '@ibm-wch-sdk/cli-credentials';
import { Observable } from 'rxjs';
export declare function validateCredentials(aApiUrl: string, aCredentials: Credentials): Observable<string>;
/**
 * Tests if  the API URL is valid and if we have sufficient credentials to access the API
 *
 * @param aUrl  the API URL
 * @return the url
 */
export declare function validateApiUrl(aUrl: string, bValidateWithCredentials: boolean): Observable<string>;
export declare const WCHTOOLS_DEPENDENCIES = "wchtools-dependencies";
export declare function findSdkVersion(host: Tree): Observable<string>;
export declare function findDataDir(host: Tree): Path;
export declare function findWchToolsOptions(host: Tree): Path;
export declare function addToWchToolsDependencies(aDeps: string[], aPkg: any): void;