import type { createJiti } from "jiti";
type CreateJiti = typeof createJiti;
type JitiTransform = NonNullable<NonNullable<Parameters<CreateJiti>[1]>["transform"]>;
/**
 * jiti tries a `./x.js` import of `x.ts` against every resolution condition,
 * base URL, and extension before its `.js` -> `.ts` fallback, and each miss
 * throws. Naming the TypeScript source that fallback would select resolves it
 * on the first probe.
 */
export declare function typeScriptSourceSpecifier(specifier: string, importer: string): string | undefined;
/**
 * A jiti `transform` that runs jiti's own Babel transform plus the specifier
 * rewrite. Use it with jiti's `fsCache: false`: jiti keys its cache on the
 * importer source alone, while a rewrite also depends on which siblings exist.
 */
export declare function createTypeScriptSourceSpecifierTransform(createJitiImpl: CreateJiti, id: string, cacheDir: () => string | undefined): JitiTransform;
export {};
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