import { type IAadTokenProvider, type _IInternalAadTokenProvider as IInternalAadTokenProvider } from '@microsoft/sp-http-base';
import type { AuthenticationProvider } from '@msinternal/ms-graph-v3-bundle';
export declare class MSGraphAuthenticationProvider implements AuthenticationProvider {
    private readonly _tokenProvider;
    private readonly _graphBaseUrl;
    private readonly _isInternal;
    constructor(tokenProvider: IAadTokenProvider | IInternalAadTokenProvider, graphBaseUrl: string, isInternal: boolean);
    getAccessToken(): Promise<string>;
    private _getOAuthToken;
    private _getInternalToken;
}
//# sourceMappingURL=MSGraphAuthenticationProvider.d.ts.map