import type { z } from 'zod';
/**
 * The two seam helpers, bound to the name one engine answers under.
 *
 * The engine name is the ONLY thing that differed between the copies, so it is
 * the only thing an engine supplies:
 *
 * ```ts
 * const { columnsOf, returns } = engineSeam('engine-workorder');
 * ```
 *
 * Bound once at module scope rather than threaded through every call, so a read
 * site stays `returns(workOrder, 'getWorkOrder', row)` — the surface it publishes
 * and nothing else.
 */
export declare function engineSeam(engine: string): {
    returns: <T>(schema: z.ZodType<T>, surface: string, value: unknown) => T;
    columnsOf: (schema: {
        readonly shape: Readonly<Record<string, unknown>>;
    }) => string;
};
//# sourceMappingURL=seam.d.ts.map