import * as MicrosoftGraph from '@microsoft/microsoft-graph-types';
import { Client } from '@microsoft/microsoft-graph-client/lib/es/Client';
import { IProvider } from './providers/IProvider';
import { AuthenticationHandlerOptions } from '@microsoft/microsoft-graph-client/lib/es/middleware/options/AuthenticationHandlerOptions';
export declare function prepScopes(...scopes: string[]): AuthenticationHandlerOptions[];
export declare class Graph {
    client: Client;
    constructor(provider: IProvider);
    private blobToBase64;
    me(): Promise<MicrosoftGraph.User>;
    getUser(userPrincipleName: string): Promise<MicrosoftGraph.User>;
    findPerson(query: string): Promise<MicrosoftGraph.Person[]>;
    findContactByEmail(email: string): Promise<MicrosoftGraph.Contact[]>;
    private getPhotoForResource;
    myPhoto(): Promise<string>;
    getUserPhoto(userId: string): Promise<string>;
    getContactPhoto(contactId: string): Promise<string>;
    calendar(startDateTime: Date, endDateTime: Date): Promise<Array<MicrosoftGraph.Event>>;
}