/**
 * Replaces the value of a field with the specified value.
 * @param value replacement value
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/set/
 */
export declare const $set: <T>(value: T) => import("./operator").Operator;
/**
 * Increments a field by a specified value.
 * @param value amount to increment by (default `1`)
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/inc/
 */
export declare const $inc: <T>(value?: T) => import("./operator").Operator;
/**
 * Updates the value of the field to a specified value if the specified value is **greater than**
 * the current value of the field.
 * @param value max value
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/max/
 */
export declare const $max: <T>(value: T) => import("./operator").Operator;
/**
 * Updates the value of the field to a specified value if the specified value is **less than**
 * the current value of the field.
 * @param value min value
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/min/
 */
export declare const $min: <T>(value: T) => import("./operator").Operator;
/**
 * Multiplies the value of a field by a number.
 * @param value multiply factor (default `1`)
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/mul/
 */
export declare const $mul: <T>(value?: T) => import("./operator").Operator;
/**
 * Updates the name of a field.
 * @param field new field name
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/rename/
 */
export declare const $rename: (field: string) => import("./operator").Operator;
/**
 * Assigns the specified value to the field when `{ upsert: true }` operation is used and
 * results in a new document being created. If the update operation does not result in an insert,
 * does nothing.
 * @param value the value to set on document creation
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/setOnInsert/
 */
export declare const $setOnInsert: <T>(value: T) => import("./operator").Operator;
/**
 * Deletes the specified field from a document.
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/unset/
 */
export declare const $unset: () => import("./operator").Operator;
/**
 * Sets the value of a field to the current date.
 * @param type (default `date`) when `date` is used sets to MongoDB's [Date](https://www.mongodb.com/docs/manual/reference/bson-types/#std-label-document-bson-type-date) type, for `timestamp` sets to [Timestamp](https://www.mongodb.com/docs/manual/reference/bson-types/#std-label-document-bson-type-timestamp).
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/currentDate/
 */
export declare const $currentDate: (type?: 'date' | 'timestamp') => import("./operator").Operator;
/**
 * Sets the value of a field to the current date as a MondoDB's [Timestamp](https://www.mongodb.com/docs/manual/reference/bson-types/#std-label-document-bson-type-timestamp) type.
 * This is an alias for `$currentDate('timestamp')`.
 * @see https://www.mongodb.com/docs/manual/reference/operator/update/currentDate/
 */
export declare const $timestamp: () => import("./operator").Operator;