/// <reference types="node" />
import * as nunjucks from 'nunjucks';
import { ExecuteContext, UserInfo } from './compiler';
import { IncomingHttpHeaders, KoaRequest } from '../../models/index';
export declare const ReservedContextKeys: {
    CurrentProfileName: string;
};
/** A helper class to manage metadata while executing templates, e.g. parameters, profile ...etc. */
export declare class NunjucksExecutionMetadata {
    private profileName;
    private parameters;
    private userInfo?;
    private req?;
    private headers?;
    constructor({ parameters, profileName, user, req, headers, }: ExecuteContext);
    /** Load from nunjucks context */
    static load(context: nunjucks.Context): NunjucksExecutionMetadata;
    /** Dump to a pure object */
    dump(): {
        [x: string]: string | {
            params: Record<string, any>;
            user: UserInfo | undefined;
            req: KoaRequest | undefined;
            profile: string;
            headers: IncomingHttpHeaders | undefined;
        };
        context: {
            params: Record<string, any>;
            user: UserInfo | undefined;
            req: KoaRequest | undefined;
            profile: string;
            headers: IncomingHttpHeaders | undefined;
        };
    };
    getProfileName(): string;
    getUserInfo(): UserInfo | undefined;
    getRequest(): KoaRequest | undefined;
    getHeaders(): IncomingHttpHeaders | undefined;
}