/// <reference types="node" />
import { DataItem, RegistryItem } from "@keystonehq/bc-ur-registry";
import { CryptoPortfolioMetadata } from "@ngraveio/bc-ur-registry-crypto-portfolio-metadata";
interface ICryptoTxSignature {
    requestId?: Buffer;
    signature: Buffer;
    metadata?: CryptoPortfolioMetadata;
}
export declare class CryptoTxSignature extends RegistryItem {
    private _requestId?;
    private signature;
    private metadata?;
    getRegistryType: () => import("@keystonehq/bc-ur-registry").RegistryType;
    constructor({ requestId, signature, metadata }: ICryptoTxSignature);
    private set requestId(value);
    getRequestId: () => Buffer | undefined;
    getSignature: () => Buffer;
    getMetadata: () => CryptoPortfolioMetadata | undefined;
    /**
     * Convert CryptoTxSignature to DataItem representation
     * @returns {DataItem} DataItem representation of CryptoTxSignature
     */
    toDataItem: () => DataItem;
    /**
     * Creates a CryptoTxSignature from a DataItem
     * @param dataItem
     * @returns
     */
    static fromDataItem: (dataItem: DataItem) => CryptoTxSignature;
    static fromCBOR: (_cborPayload: Buffer) => CryptoTxSignature;
}
export {};