export interface SessionToken {
    address: string;
    issuedAt: number;
    expiresAt: number;
    claims?: Record<string, unknown>;
}
export interface SessionTokenOptions {
    secret: string;
    ttlMs?: number;
    now?: () => number;
    claims?: Record<string, unknown>;
}
export interface VerifySessionTokenOptions {
    secret: string;
    now?: () => number;
}
export declare function signSessionToken(address: string, options: SessionTokenOptions): string;
export declare function verifySessionToken(token: string, options: VerifySessionTokenOptions): SessionToken | null;
export declare function readBearerToken(header: string | null | undefined): string | null;
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