export declare var classByType: {
    [s: string]: string;
};
/**
 * Returns true if the value is a string primitive.
 */
export declare function isString(v: any): v is string;
/**
 * Returns true if the value is a boolean primitive.
 */
export declare function isBoolean(v: any): v is boolean;
/**
 * Returns true if the value is a number primitive.
 */
export declare function isNumber(v: any): v is number;
/**
 * Returns true if the value is a function.
 */
export declare function isFunction(v: any): v is Function;
declare var isArray: (arg: any) => arg is any[];
export { isArray };
/**
 * Returns true if the value is undefined.
 */
export declare function isUndefined(v: any): boolean;
/**
 * Returns true if the value is null.
 */
export declare function isNull(v: any): boolean;
/**
 * Returns true if the value is undefined or null.
 */
export declare function isUndefinedOrNull(v: any): boolean;
/**
 * Returns true if the value is an object and not null. Includes functions.
 */
export declare function isObjectNotNull(v: any): v is {};
/**
 * Returns the type of value.
 */
export declare function getType(v: any): string;
/**
 * Returns the value if ‘instanceof’ is true for the given constructor.
 */
export declare function as<T>(c: new (...r) => T, v: any): T;
declare var _default: {
    classByType: {
        [s: string]: string;
    };
    isString: (v: any) => v is string;
    isBoolean: (v: any) => v is boolean;
    isNumber: (v: any) => v is number;
    isFunction: (v: any) => v is Function;
    isArray: (arg: any) => arg is any[];
    isUndefined: (v: any) => boolean;
    isNull: (v: any) => boolean;
    isUndefinedOrNull: (v: any) => boolean;
    isObjectNotNull: (v: any) => v is {};
    getType: (v: any) => string;
    as: <T>(c: new (...r: any[]) => T, v: any) => T;
};
export default _default;