import type { IR } from "./ir.js";
/** Lower a built-in keyword into fresh validation IR. */
export declare function keywordIR(name: string): IR | undefined;
/** Lower a regular expression into a string refinement. */
export declare function patternIR(regex: RegExp): IR;
/** Lower an ArkType-style template literal into a string pattern. */
export declare function templateIR(source: string): IR;