import type { PackageRule, PackageRuleInputConfig } from '../../config/types';
import type { MatcherApi } from './types';
export declare abstract class Matcher implements MatcherApi {
    /**
     * Test match packageRule against inputConfig
     * @return null if no rules are defined, true if match should be applied and else false
     * @param inputConfig
     * @param packageRule
     */
    abstract matches(inputConfig: PackageRuleInputConfig, packageRule: PackageRule): boolean | null;
}
