import type { BaseLogger } from 'pino';
import type { LTISession } from '../interfaces/ltiSession.js';
import type { LTIStorage } from '../interfaces/ltiStorage.js';
import type { TokenService } from './token.service.js';
/**
 * Names and Role Provisioning Services (NRPS) implementation for LTI 1.3.
 * Provides methods to retrieve course membership and user information from the platform.
 *
 * @see https://www.imsglobal.org/spec/lti-nrps/v2p0
 */
export declare class NRPSService {
    private tokenService;
    private storage;
    private logger;
    /**
     * Creates a new NRPSService instance.
     *
     * @param tokenService - Token service for obtaining OAuth2 bearer tokens
     * @param storage - Storage adapter for retrieving launch configurations
     * @param logger - Logger instance for debug and error logging
     */
    constructor(tokenService: TokenService, storage: LTIStorage, logger: BaseLogger);
    /**
     * Retrieves all members (users) in the current course/context from the platform.
     * Returns raw response that should be parsed by the calling service.
     *
     * @param session - Active LTI session containing NRPS service endpoints
     * @returns Promise resolving to the HTTP response containing membership data
     * @throws {Error} When NRPS is not available for this session or request fails
     *
     * @example
     * ```typescript
     * const response = await nrpsService.getMembers(session);
     * const data = await response.json();
     * console.log('Course members:', data.members);
     * ```
     */
    getMembers(session: LTISession): Promise<Response>;
    private getNRPSToken;
    private validateNRPSResponse;
}
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