import type { z } from 'zod';
/**
 * Read a JSON file and validate it in one step: the suite's one boundary for
 * trusting on-disk JSON (the client secret, token files, the roster). Filesystem errors (ENOENT
 * included) and zod issues both throw; callers own the fallback policy.
 */
export declare function readJsonFile<S extends z.ZodType>(path: string, schema: S): z.infer<S>;
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