import { PatternMatcher } from './PatternMatcher.js';
/**
 * @access private
 */
export declare class StringMatcher<Output_Type> extends PatternMatcher<string, string | RegExp, string, Output_Type> {
    when(pattern: string | RegExp, transformation: (v: string) => Output_Type): PatternMatcher<string, string | RegExp, string, Output_Type>;
}
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