/**
 * @file Converter for request header removal rules.
 */
import { type AnyRule } from '../../nodes/index.js';
import { type NodeConversionResult } from '../base-interfaces/conversion-result.js';
import { RuleConverterBase } from '../base-interfaces/rule-converter-base.js';
export declare const ERROR_MESSAGES: {
    EMPTY_PARAMETER: string;
    EXPECTED_END_OF_RULE: string;
    MULTIPLE_DOMAINS_NOT_SUPPORTED: string;
};
/**
 * Converter for request header removal rules.
 *
 * @todo Implement `convertToUbo` (ABP currently doesn't support header removal rules).
 */
export declare class HeaderRemovalRuleConverter extends RuleConverterBase {
    /**
     * Converts a header removal rule to AdGuard syntax, if possible.
     *
     * @param rule Rule node to convert.
     *
     * @returns An object which follows the {@link NodeConversionResult} interface. Its `result` property contains
     * the array of converted rule nodes, and its `isConverted` flag indicates whether the original rule was converted.
     * If the rule was not converted, the result array will contain the original node with the same object reference.
     *
     * @throws If the rule is invalid or cannot be converted.
     *
     * @example
     * If the input rule is:
     * ```adblock
     * example.com##^responseheader(header-name)
     * ```
     * The output will be:
     * ```adblock
     * ||example.com^$removeheader=header-name
     * ```
     */
    static convertToAdg(rule: AnyRule): NodeConversionResult<AnyRule>;
}