/**
 * Object validation - pickKeys
 * Returns a new object validator that only checks the specified keys of the
 * source validator. Mirrors `Pick<T, K>` at the type level so consumers like
 * `union()`, `intersection()`, and `SchemaToInterface` see the narrowed shape.
 *
 * The function is named `pickKeys` to avoid conflicting with the top-level
 * `Object` module's `pick` runtime helper while making the keys-based
 * semantics explicit.
 */
import { type InferObject, type ObjectShape, type ObjectValidator, type StandardSchemaV1 } from "./core";
/**
 * Picks the given keys from an existing object validator and returns a new
 * object validator covering only those keys.
 * @template T - Original object shape
 * @template K - Tuple of keys to pick from the original shape
 * @param {ObjectValidator<T>} validator - Source object validator
 * @param {K} keys - Keys to retain on the new validator
 * @param {string} [message] - Custom error message for the picked validator
 * @returns {ObjectValidator<Pick<T, K[number]>>} - New validator scoped to picked keys
 */
export declare const pickKeys: <T extends ObjectShape, K extends readonly (keyof T)[]>(validator: ObjectValidator<T>, keys: K, message?: string) => ObjectValidator<Pick<T, K[number]>> & StandardSchemaV1<InferObject<Pick<T, K[number]>>, InferObject<Pick<T, K[number]>>>;