import { type MaybePromise, type NarrowToExpected, type RequiredKeysOf } from '@augment-vir/core';
import { type SetRequired } from 'type-fest';
import { type WaitUntilOptions } from '../guard-types/wait-until-function.js';
/** Helper type for `hasKey`. */
type ExtractValue<Key extends PropertyKey, Parent> = Key extends keyof Parent ? Key extends keyof SetRequired<Parent, Key> ? SetRequired<Parent, Key>[Key] : never : Key extends keyof Extract<Parent, Record<Key, any>> ? Key extends keyof SetRequired<Extract<Parent, Record<Key, any>>, Key> ? SetRequired<Extract<Parent, Record<Key, any>>, Key>[Key] : never : never;
/** Helper type for `hasKey`. */
type CombinedParentValue<Key extends PropertyKey, Parent> = ExtractValue<Key, Parent> extends never ? unknown : ExtractValue<Key, Parent>;
/** Helper type for `hasKey`. */
type CombineTypeWithKey<Key extends PropertyKey, Parent> = Parent & Record<Key, CombinedParentValue<Key, Parent>>;
declare function hasKey<const Key extends PropertyKey, const Parent>(this: void, parent: Parent, key: Key): parent is CombineTypeWithKey<Key, Parent>;
export declare const keyGuards: {
    assert: {
        /**
         * Asserts that a key is contained within a parent value.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.isKeyof('a', {a: 0, b: 1}); // passes
         * assert.isKeyof('c', {a: 0, b: 1}); // fails
         * ```
         *
         * @throws {@link AssertionError} If the key is not in the parent.
         * @see
         * - {@link assert.isNotKeyOf} : the opposite assertion.
         */
        isKeyOf<const Parent>(this: void, key: PropertyKey, parent: Parent, failureMessage?: string | undefined): asserts key is keyof Parent;
        /**
         * Asserts that a key is _not_ contained within a parent value.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.isNotKeyOf('a', {a: 0, b: 1}); // fails
         * assert.isNotKeyOf('c', {a: 0, b: 1}); // passes
         * ```
         *
         * @throws {@link AssertionError} If the key is in the parent.
         * @see
         * - {@link assert.isKeyOf} : the opposite assertion.
         */
        isNotKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent, failureMessage?: string | undefined): asserts key is Exclude<Key, RequiredKeysOf<Parent>>;
        /**
         * Asserts that a parent value has the key.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.hasKey({a: 0, b: 1}, 'a'); // passes
         * assert.hasKey({a: 0, b: 1}, 'c'); // fails
         * ```
         *
         * @throws {@link AssertionError} If the parent does not have the key.
         * @see
         * - {@link assert.lacksKey} : the opposite assertion.
         * - {@link assert.hasKeys} : the multi-key assertion.
         */
        hasKey<const Key extends PropertyKey, const Parent>(this: void, parent: Parent, key: Key, failureMessage?: string | undefined): asserts parent is CombineTypeWithKey<Key, Parent>;
        /**
         * Asserts that a parent value does not have the key.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.lacksKey({a: 0, b: 1}, 'a'); // fails
         * assert.lacksKey({a: 0, b: 1}, 'c'); // passes
         * ```
         *
         * @throws {@link AssertionError} If the parent has the key.
         * @see
         * - {@link assert.hasKey} : the opposite assertion.
         * - {@link assert.lacksKeys} : the multi-key assertion.
         */
        lacksKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key, failureMessage?: string | undefined): asserts parent is Exclude<Parent, Record<Key, any>>;
        /**
         * Asserts that a parent value has all the keys.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.hasKeys({a: 0, b: 1}, [
         *     'a',
         *     'b',
         * ]); // passes
         * assert.hasKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // fails
         * ```
         *
         * @throws {@link AssertionError} If the parent does not have all the keys.
         * @see
         * - {@link assert.lacksKeys} : the opposite assertion.
         * - {@link assert.hasKey} : the single-key assertion.
         */
        hasKeys<const Keys extends PropertyKey, const Parent>(this: void, parent: Parent, keys: ReadonlyArray<Keys>, failureMessage?: string | undefined): asserts parent is CombineTypeWithKey<Keys, Parent>;
        /**
         * Asserts that a parent value none of the keys.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assert} from '@augment-vir/assert';
         *
         * assert.lacksKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // fails
         * assert.lacksKeys({a: 0, b: 1}, [
         *     'c',
         *     'd',
         * ]); // passes
         * ```
         *
         * @throws {@link AssertionError} If the parent has any of the keys.
         * @see
         * - {@link assert.hasKeys} : the opposite assertion.
         * - {@link assert.lacksKey} : the single-key assertion.
         */
        lacksKeys<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, keys: ReadonlyArray<Key>, failureMessage?: string | undefined): asserts parent is Exclude<Parent, Partial<Record<Key, any>>>;
    };
    check: {
        /**
         * Checks that a key is contained within a parent value.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.isKeyof('a', {a: 0, b: 1}); // returns `true`
         * check.isKeyof('c', {a: 0, b: 1}); // returns `false`
         * ```
         *
         * @see
         * - {@link check.isNotKeyOf} : the opposite check.
         */
        isKeyOf<const Parent>(this: void, key: PropertyKey, parent: Parent): key is keyof Parent;
        /**
         * Checks that a key is _not_ contained within a parent value.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.isNotKeyOf('a', {a: 0, b: 1}); // returns `false`
         * check.isNotKeyOf('c', {a: 0, b: 1}); // returns `true`
         * ```
         *
         * @see
         * - {@link check.isKeyOf} : the opposite check.
         */
        isNotKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent): key is Exclude<Key, RequiredKeysOf<Parent>>;
        /**
         * Checks that a parent value has the key.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.hasKey({a: 0, b: 1}, 'a'); // returns `true`
         * check.hasKey({a: 0, b: 1}, 'c'); // returns `false`
         * ```
         *
         * @see
         * - {@link check.lacksKey} : the opposite check.
         * - {@link check.hasKeys} : the multi-key check.
         */
        hasKey: typeof hasKey;
        /**
         * Checks that a parent value does not have the key.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.lacksKey({a: 0, b: 1}, 'a'); // returns `false`
         * check.lacksKey({a: 0, b: 1}, 'c'); // returns `true`
         * ```
         *
         * @see
         * - {@link check.hasKey} : the opposite check.
         * - {@link check.lacksKeys} : the multi-key check.
         */
        lacksKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key): parent is Exclude<Parent, Record<Key, any>>;
        /**
         * Checks that a parent value has all the keys.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.hasKeys({a: 0, b: 1}, [
         *     'a',
         *     'b',
         * ]); // returns `true`
         * check.hasKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // returns `false`
         * ```
         *
         * @see
         * - {@link check.lacksKeys} : the opposite check.
         * - {@link check.hasKey} : the single-key check.
         */
        hasKeys<const Keys extends PropertyKey, const Parent>(this: void, parent: Parent, keys: ReadonlyArray<Keys>): parent is CombineTypeWithKey<Keys, Parent>;
        /**
         * Checks that a parent value none of the keys.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {check} from '@augment-vir/assert';
         *
         * check.lacksKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // returns `false`
         * check.lacksKeys({a: 0, b: 1}, [
         *     'c',
         *     'd',
         * ]); // returns `true`
         * ```
         *
         * @see
         * - {@link check.hasKeys} : the opposite check.
         * - {@link check.lacksKey} : the single-key check.
         */
        lacksKeys<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, keys: ReadonlyArray<Key>): parent is Exclude<Parent, Partial<Record<Key, any>>>;
    };
    assertWrap: {
        /**
         * Asserts that a key is contained within a parent value. Returns the key if the assertion
         * passes.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.isKeyof('a', {a: 0, b: 1}); // returns `'a'`
         * assertWrap.isKeyof('c', {a: 0, b: 1}); // throws an error
         * ```
         *
         * @returns The key if it is in the parent.
         * @throws {@link AssertionError} If the key is not in the parent.
         * @see
         * - {@link assertWrap.isNotKeyOf} : the opposite assertion.
         */
        isKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent, failureMessage?: string | undefined): NarrowToExpected<Key, keyof Parent>;
        /**
         * Asserts that a key is _not_ contained within a parent value. Returns the key if the
         * assertion passes.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.isNotKeyOf('a', {a: 0, b: 1}); // throws an error
         * assertWrap.isNotKeyOf('c', {a: 0, b: 1}); // returns `'c'`
         * ```
         *
         * @returns The key if it is not in the parent.
         * @throws {@link AssertionError} If the key is in the parent.
         * @see
         * - {@link assertWrap.isKeyOf} : the opposite assertion.
         */
        isNotKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent, failureMessage?: string | undefined): Exclude<Key, RequiredKeysOf<Parent>>;
        /**
         * Asserts that a parent value has the key. Returns the parent if the assertion passes.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.hasKey({a: 0, b: 1}, 'a'); // returns `{a: 0, b: 1}`
         * assertWrap.hasKey({a: 0, b: 1}, 'c'); // throws an error
         * ```
         *
         * @returns The parent if it has the key.
         * @throws {@link AssertionError} If the parent does not have the key.
         * @see
         * - {@link assertWrap.lacksKey} : the opposite assertion.
         * - {@link assertWrap.hasKeys} : the multi-key assertion.
         */
        hasKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key, failureMessage?: string | undefined): CombineTypeWithKey<Key, Parent>;
        /**
         * Asserts that a parent value does not have the key. Returns the parent if the assertion
         * passes.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.lacksKey({a: 0, b: 1}, 'a'); // throws an error
         * assertWrap.lacksKey({a: 0, b: 1}, 'c'); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The parent if it does not have the key.
         * @throws {@link AssertionError} If the parent has the key.
         * @see
         * - {@link assertWrap.hasKey} : the opposite assertion.
         * - {@link assertWrap.lacksKeys} : the multi-key assertion.
         */
        lacksKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key, failureMessage?: string | undefined): Exclude<Parent, Record<Key, any>>;
        /**
         * Asserts that a parent value has all the keys. Returns the parent if the assertion passes.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.hasKeys({a: 0, b: 1}, [
         *     'a',
         *     'b',
         * ]); // returns `{a: 0, b: 1}`
         * assertWrap.hasKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // throws an error
         * ```
         *
         * @returns The parent if it has all the keys.
         * @throws {@link AssertionError} If the parent does not have all the keys.
         * @see
         * - {@link assertWrap.lacksKeys} : the opposite assertion.
         * - {@link assertWrap.hasKey} : the single-key assertion.
         */
        hasKeys<const Keys extends PropertyKey, const Parent>(this: void, parent: Parent, keys: ReadonlyArray<Keys>, failureMessage?: string | undefined): CombineTypeWithKey<Keys, Parent>;
        /**
         * Asserts that a parent value none of the keys. Returns the parent if the assertion passes.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {assertWrap} from '@augment-vir/assert';
         *
         * assertWrap.lacksKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // throws an error
         * assertWrap.lacksKeys({a: 0, b: 1}, [
         *     'c',
         *     'd',
         * ]); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The parent if it does not have any of the keys.
         * @throws {@link AssertionError} If the parent has any of the keys.
         * @see
         * - {@link assertWrap.hasKeys} : the opposite assertion.
         * - {@link assertWrap.lacksKey} : the single-key assertion.
         */
        lacksKeys<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, keys: ReadonlyArray<Key>, failureMessage?: string | undefined): Exclude<Parent, Partial<Record<Key, any>>>;
    };
    checkWrap: {
        /**
         * Checks that a key is contained within a parent value. Returns the key if the check
         * passes, otherwise `undefined`.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.isKeyof('a', {a: 0, b: 1}); // returns `'a'`
         * checkWrap.isKeyof('c', {a: 0, b: 1}); // returns `undefined`
         * ```
         *
         * @returns The key if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.isNotKeyOf} : the opposite check.
         */
        isKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent): NarrowToExpected<Key, keyof Parent> | undefined;
        /**
         * Checks that a key is _not_ contained within a parent value. Returns the key if the check
         * passes, otherwise `undefined`.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.isNotKeyOf('a', {a: 0, b: 1}); // returns `undefined`
         * checkWrap.isNotKeyOf('c', {a: 0, b: 1}); // returns `'c'`
         * ```
         *
         * @returns The key if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.isKeyOf} : the opposite check.
         */
        isNotKeyOf<const Key extends PropertyKey, const Parent>(this: void, key: Key, parent: Parent): Exclude<Key, RequiredKeysOf<Parent>> | undefined;
        /**
         * Checks that a parent value has the key. Returns the parent value if the check passes,
         * otherwise `undefined`.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.hasKey({a: 0, b: 1}, 'a'); // returns `{a: 0, b: 1}`
         * checkWrap.hasKey({a: 0, b: 1}, 'c'); // returns `undefined`
         * ```
         *
         * @returns The parent value if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.lacksKey} : the opposite check.
         * - {@link checkWrap.hasKeys} : the multi-key check.
         */
        hasKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key): CombineTypeWithKey<Key, Parent> | undefined;
        /**
         * Checks that a parent value does not have the key. Returns the parent value if the check
         * passes, otherwise `undefined`.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.lacksKey({a: 0, b: 1}, 'a'); // returns `undefined`
         * checkWrap.lacksKey({a: 0, b: 1}, 'c'); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The parent value if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.hasKey} : the opposite check.
         * - {@link checkWrap.lacksKeys} : the multi-key check.
         */
        lacksKey<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, key: Key): Exclude<Parent, Record<Key, any>> | undefined;
        /**
         * Checks that a parent value has all the keys. Returns the parent value if the check
         * passes, otherwise `undefined`.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.hasKeys({a: 0, b: 1}, [
         *     'a',
         *     'b',
         * ]); // returns `{a: 0, b: 1}`
         * checkWrap.hasKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // returns `undefined`
         * ```
         *
         * @returns The parent value if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.lacksKeys} : the opposite check.
         * - {@link checkWrap.hasKey} : the single-key check.
         */
        hasKeys<const Keys extends PropertyKey, const Parent>(this: void, parent: Parent, keys: ReadonlyArray<Keys>): CombineTypeWithKey<Keys, Parent> | undefined;
        /**
         * Checks that a parent value none of the keys. Returns the parent value if the check
         * passes, otherwise `undefined`.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {checkWrap} from '@augment-vir/assert';
         *
         * checkWrap.lacksKeys({a: 0, b: 1}, [
         *     'b',
         *     'c',
         * ]); // returns `undefined`
         * checkWrap.lacksKeys({a: 0, b: 1}, [
         *     'c',
         *     'd',
         * ]); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The parent value if the check passes, otherwise `undefined`.
         * @see
         * - {@link checkWrap.hasKeys} : the opposite check.
         * - {@link checkWrap.lacksKey} : the single-key check.
         */
        lacksKeys<const Parent, const Key extends PropertyKey>(this: void, parent: Parent, keys: ReadonlyArray<Key>): Exclude<Parent, Partial<Record<Key, any>>> | undefined;
    };
    waitUntil: {
        /**
         * Repeatedly calls a callback until its output is a key that is contained within the first,
         * parent value. Once the callback output passes, it is returned. If the attempts time out,
         * an error is thrown.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.isKeyof({a: 0, b: 1}, () => 'a'); // returns `'a'`
         * await waitUntil.isKeyof({a: 0, b: 1}, () => 'c'); // throws an error
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.isNotKeyOf} : the opposite assertion.
         */
        isKeyOf: <const Key extends PropertyKey, const Parent>(this: void, parent: Parent, callback: () => MaybePromise<Key>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<NarrowToExpected<Key, keyof Parent>>;
        /**
         * Repeatedly calls a callback until its output is a key that is _not_ contained within the
         * first, parent value. Once the callback output passes, it is returned. If the attempts
         * time out, an error is thrown.
         *
         * Type guards the key.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.isKeyof({a: 0, b: 1}, () => 'a'); // throws an error
         * await waitUntil.isKeyof({a: 0, b: 1}, () => 'c'); // returns `'c'`
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.isNotKeyOf} : the opposite assertion.
         */
        isNotKeyOf: <const Key extends PropertyKey, const Parent>(this: void, parent: Parent, callback: () => MaybePromise<Key>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<Exclude<Key, RequiredKeysOf<Parent>>>;
        /**
         * Repeatedly calls a callback until its output is a parent value that has the first, key
         * input. Once the callback output passes, it is returned. If the attempts time out, an
         * error is thrown.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.hasKey('a', () => {
         *     return {a: 0, b: 1};
         * }); // returns `{a: 0, b: 1}`
         * await waitUntil.hasKey('c', () => {
         *     return {a: 0, b: 1};
         * }); // throws an error
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.lacksKey} : the opposite assertion.
         * - {@link waitUntil.hasKeys} : the multi-key assertion.
         */
        hasKey: <const Parent, const Key extends PropertyKey>(this: void, key: Key, callback: () => MaybePromise<Parent>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<CombineTypeWithKey<Key, Parent>>;
        /**
         * Repeatedly calls a callback until its output is a parent value that does not have the
         * first, key input. Once the callback output passes, it is returned. If the attempts time
         * out, an error is thrown.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.hasKey('a', () => {
         *     return {a: 0, b: 1};
         * }); // throws an error
         * await waitUntil.hasKey('c', () => {
         *     return {a: 0, b: 1};
         * }); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.hasKey} : the opposite assertion.
         * - {@link waitUntil.lacksKeys} : the multi-key assertion.
         */
        lacksKey: <const Parent, const Key extends PropertyKey>(this: void, key: Key, callback: () => MaybePromise<Parent>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<Exclude<Parent, Record<Key, any>>>;
        /**
         * Repeatedly calls a callback until its output is a parent value that has all of the first,
         * keys input. Once the callback output passes, it is returned. If the attempts time out, an
         * error is thrown.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.hasKeys(
         *     [
         *         'a',
         *         'b',
         *     ],
         *     () => {
         *         return {a: 0, b: 1};
         *     },
         * ); // returns `{a: 0, b: 1}`
         * await waitUntil.hasKeys(
         *     [
         *         'b',
         *         'c',
         *     ],
         *     () => {
         *         return {a: 0, b: 1};
         *     },
         * ); // throws an error
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.lacksKeys} : the opposite assertion.
         * - {@link waitUntil.hasKey} : the single-key assertion.
         */
        hasKeys: <const Keys extends PropertyKey, const Parent>(this: void, keys: ReadonlyArray<Keys>, callback: () => MaybePromise<Parent>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<CombineTypeWithKey<Keys, Parent>>;
        /**
         * Repeatedly calls a callback until its output is a parent value that does not have any of
         * the first, keys input. Once the callback output passes, it is returned. If the attempts
         * time out, an error is thrown.
         *
         * Type guards the parent value.
         *
         * @example
         *
         * ```ts
         * import {waitUntil} from '@augment-vir/assert';
         *
         * await waitUntil.hasKeys(
         *     [
         *         'a',
         *         'b',
         *     ],
         *     () => {
         *         return {a: 0, b: 1};
         *     },
         * ); // throws an error
         * await waitUntil.hasKeys(
         *     [
         *         'b',
         *         'c',
         *     ],
         *     () => {
         *         return {a: 0, b: 1};
         *     },
         * ); // returns `{a: 0, b: 1}`
         * ```
         *
         * @returns The callback output once it passes.
         * @throws {@link AssertionError} On timeout.
         * @see
         * - {@link waitUntil.hasKeys} : the opposite assertion.
         * - {@link waitUntil.lacksKey} : the single-key assertion.
         */
        lacksKeys: <const Parent, const Keys extends PropertyKey>(this: void, keys: ReadonlyArray<Keys>, callback: () => MaybePromise<Parent>, options?: WaitUntilOptions | undefined, failureMessage?: string | undefined) => Promise<Exclude<Parent, Partial<Record<Keys, any>>>>;
    };
};
export {};