import { z } from 'zod';
/**
 * Athena dates are in MM/DD/YYYY
 * We transform it to ISO date format
 */
export declare const AthenaDateOnlySchema: z.ZodEffects<z.ZodString, string, string>;
export declare const AthenaDateOnlyOptionalSchema: z.ZodUnion<[z.ZodOptional<z.ZodEffects<z.ZodString, string, string>>, z.ZodEffects<z.ZodLiteral<"">, undefined, "">]>;
