import { Attestation } from '../models/simplestamp/v1/attestation';
import { SimpleStamp } from '../models/simplestamp/v1/timestamp';
import { Calendar } from './calendar';
export declare class Timestamp {
    /** @internal */ timestamp_: SimpleStamp;
    /** @internal */ calendar_: Calendar;
    constructor(hash: Buffer);
    /** Parse a serialized binary representation of an existing Timestamp. */
    static fromBinary(binary: Buffer): Timestamp;
    /**
     * Add an Attestation to this Timestamp's list.
     * Returns false if one with the same calendar URL already exists.
     */
    addAttestation(attestation: Attestation): boolean;
    /**
     * Search attestations for one matching the calendar key.
     */
    getAttestationsByKey(calendarKey: Buffer): Attestation;
    /** Get a readable label for an AttestationStatus value. */
    static getAttestationStatusLabel(status: number): string;
    /**
     * Compute the digest hash: SHA256(SHA256(hash + nonce [+ source] [+ identity] [+ location]))
     */
    getDigestHash(): Buffer;
    /** Get a readable label for an OperationType value. */
    static getOperationTypeLabel(type: number): string;
    /** Get attestations in the pending state. */
    getPending(): Attestation[];
    /** Whether there are attestations with pending updates. */
    hasPending(): boolean;
    /**
     * Take the binary response from calling /digest, process it, and merge into attestations.
     */
    importDigestResponse(binary: Buffer): boolean;
    /** Whether this Timestamp has been stamped (has attestations). */
    isStamped(): boolean;
    /** Set the free-form description field. */
    setDescription(description: string): void;
    /** Set identity information. Throws if already stamped. */
    setIdentity(countryCode: string, state: string, city: string, organization: string, section: string, commonName: string, email: string, fullName: string): void;
    /** Set location and trajectory. Throws if already stamped. */
    setLocation(latitude: number, longitude?: number, altitude?: number, accuracy?: number, direction?: number, velocity?: number): void;
    /** Override the random nonce value (mostly useful for testing). */
    setNonce(nonce: Buffer): void;
    /** Set the source field (file name, URL, etc.). */
    setSource(source: string): void;
    /** Call /digest on all calendars. Returns the number of successful stamps. */
    stamp(optUrls?: string[]): Promise<number>;
    /** Serialize to a portable binary representation. */
    toBinary(): Buffer;
    /** JSON representation for inspecting/debugging. Not meant for re-importing. */
    toJSON(): Record<string, unknown>;
    /** Nicer string representation. Not meant for re-importing. */
    toString(): string;
    /** Compute updates from the calendar server. */
    update(): Promise<boolean>;
    /**
     * Find the attestation by calendar key, attach new operations, and execute them.
     */
    upgradeAttestation(calendarKey: Buffer, binary: Buffer): boolean;
    /** Utility method for UNIX timestamp in seconds. @internal */
    static getNow_(): number;
}
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