import { _PdfAbstractSyntaxElement } from '../asn1/abstract-syntax';
import { _PdfUniqueEncodingElement } from '../asn1/unique-encoding-element';
import { _PdfObjectIdentifier } from '../asn1/identifier-mapping';
/**
 * Represents algorithm identifier components parsed from ASN.1 AlgorithmIdentifier.
 *
 * @private
 */
export declare class _PdfAlgorithms {
    /**
     * The ASN.1 element that identifies the algorithm.
     *
     * @private
     * @type {_PdfAbstractSyntaxElement}
     */
    _element: _PdfAbstractSyntaxElement;
    /**
     * The parsed object identifier for the algorithm.
     *
     * @private
     * @type {_PdfObjectIdentifier}
     */
    _objectID: _PdfObjectIdentifier;
    /**
     * Optional ASN.1 parameters element for the algorithm.
     *
     * @private
     * @type {_PdfAbstractSyntaxElement|undefined}
     */
    _parameters?: _PdfAbstractSyntaxElement;
    /**
     * True when the algorithm parameters are present on the element.
     *
     * @private
     * @type {boolean}
     */
    _parametersDefined: boolean;
    constructor(element?: _PdfAbstractSyntaxElement);
    /**
     * Normalize or construct a `_PdfAlgorithms` instance from an input value.
     *
     * @private
     * @param {any} obj - Candidate object or ASN.1 element to convert.
     * @returns {_PdfAlgorithms} The resolved algorithms instance or undefined.
     */
    _getAlgorithms(obj: any): _PdfAlgorithms;
    /**
     * Return the DER/unique encoding bytes for the underlying element.
     *
     * @private
     * @returns {Uint8Array} The encoded bytes for the algorithm identifier.
     */
    _uniqueEncoderEncode(): Uint8Array;
    /**
     * Create an ASN.1 NULL unique encoder element.
     *
     * @private
     * @returns {_PdfAbstractSyntaxElement} A DER NULL element.
     */
    _getUniqueEncoderNull(): _PdfAbstractSyntaxElement;
    /**
     * Build an abstract syntax element representing the AlgorithmIdentifier sequence.
     *
     * @private
     * @returns {_PdfUniqueEncodingElement} The constructed ASN.1 sequence element.
     */
    _getAbstractSyntax(): _PdfUniqueEncodingElement;
}