import { ISimpleType, IType } from "../internal";
/**
 * `types.string` - Creates a type that can only contain a string value.
 * This type is used for string values by default
 *
 * Example:
 * ```ts
 * const Person = types.model({
 *   firstName: types.string,
 *   lastName: "Doe"
 * })
 * ```
 */
export declare const string: ISimpleType<string>;
/**
 * `types.number` - Creates a type that can only contain a numeric value.
 * This type is used for numeric values by default
 *
 * Example:
 * ```ts
 * const Vector = types.model({
 *   x: types.number,
 *   y: 1.5
 * })
 * ```
 */
export declare const number: ISimpleType<number>;
/**
 * `types.integer` - Creates a type that can only contain an integer value.
 *
 * Example:
 * ```ts
 * const Size = types.model({
 *   width: types.integer,
 *   height: 10
 * })
 * ```
 */
export declare const integer: ISimpleType<number>;
/**
 * `types.float` - Creates a type that can only contain an float value.
 *
 * Example:
 * ```ts
 * const Size = types.model({
 *   width: types.float,
 *   height: 10
 * })
 * ```
 */
export declare const float: ISimpleType<number>;
/**
 * `types.finite` - Creates a type that can only contain an finite value.
 *
 * Example:
 * ```ts
 * const Size = types.model({
 *   width: types.finite,
 *   height: 10
 * })
 * ```
 */
export declare const finite: ISimpleType<number>;
/**
 * `types.bigint` - Creates a type that can only contain a bigint value.
 * Snapshots serialize to string (JSON-safe) and deserialize from string, number or bigint.
 *
 * Example:
 * ```ts
 * const BigId = types.model({
 *   id: types.identifier,
 *   value: types.bigint
 * })
 * getSnapshot(store).value // "0" (string, JSON-safe)
 * ```
 */
export declare const bigint: IType<bigint | string | number, string, bigint>;
/**
 * `types.boolean` - Creates a type that can only contain a boolean value.
 * This type is used for boolean values by default
 *
 * Example:
 * ```ts
 * const Thing = types.model({
 *   isCool: types.boolean,
 *   isAwesome: false
 * })
 * ```
 */
export declare const boolean: ISimpleType<boolean>;
/**
 * `types.null` - The type of the value `null`
 */
export declare const nullType: ISimpleType<null>;
/**
 * `types.undefined` - The type of the value `undefined`
 */
export declare const undefinedType: ISimpleType<undefined>;
/**
 * `types.Date` - Creates a type that can only contain a javascript Date value.
 *
 * Example:
 * ```ts
 * const LogLine = types.model({
 *   timestamp: types.Date,
 * })
 *
 * LogLine.create({ timestamp: new Date() })
 * ```
 */
export declare const DatePrimitive: IType<number | Date, number, Date>;
/**
 * Returns if a given value represents a primitive type.
 *
 * @param type
 * @returns
 */
export declare function isPrimitiveType(type: unknown): type is ISimpleType<string> | ISimpleType<number> | ISimpleType<boolean> | typeof bigint | typeof DatePrimitive;