import { AccessToken } from '../../../proto/ai/inworld/engine/world-engine_pb';
export interface SessionTokenProps {
    token: string;
    type: string;
    expirationTime: Date;
    sessionId: string;
}
export declare class SessionToken {
    token: string;
    type: string;
    expirationTime: Date;
    sessionId: string;
    constructor(props: SessionTokenProps);
    static isExpired(token: SessionToken): boolean;
    static serialize(token: SessionToken): string;
    static deserialize(json: string): SessionToken;
    static fromProto(proto: AccessToken): SessionToken;
}