export type AuthType = 'basic' | 'bearer' | 'apikey' | 'oauth2';
export interface AuthenticationOptions {
    type: AuthType;
    username?: string;
    password?: string;
    token?: string;
    apiKey?: string;
    apiKeyHeader?: string;
    oauth2?: OAuth2Options;
}
export interface OAuth2Options {
    accessToken: string;
    tokenType?: string;
    refreshToken?: string;
    expiresAt?: number;
}
export declare class AuthenticationManager {
    private readonly type;
    private readonly username?;
    private readonly password?;
    private readonly token?;
    private readonly apiKey?;
    private readonly apiKeyHeader;
    private oauth2?;
    constructor(options: AuthenticationOptions);
    private validate;
    getHeaders(): Record<string, string>;
    isTokenExpired(): boolean;
    updateOAuth2Token(options: OAuth2Options): void;
    getType(): AuthType;
    getInfo(): {
        type: AuthType;
        username?: string;
        apiKeyHeader?: string;
        tokenExpired?: boolean;
    };
}
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