import { ServiceKey } from '@microsoft/sp-core-library';
import AadTokenProvider from './AadTokenProvider';
/**
 * Returns a preinitialized version of the AadTokenProviderFactory.
 * @public
 */
export default class AadTokenProviderFactory {
    /**
     * The service key for AadTokenProviderFactory.
     */
    static readonly serviceKey: ServiceKey<AadTokenProviderFactory>;
    private _tokenProvider;
    /**
     * Returns an instance of the AadTokenProvider that communicates with the current tenant's configurable
     * Service Principal.
     */
    getTokenProvider(): Promise<AadTokenProvider>;
    /**
     * Returns an instance of the AadTokenProvider that communicates with the current tenant's Service Principal.
     * This application has a set of preauthorized scopes from Microsoft.
     *
     * @internal
     */
    _getPreAuthorizedTokenProvider(): Promise<AadTokenProvider>;
}
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