/**
 * Type checker functions inspired by React.PropTypes.
 */
import { Model } from "..";
export declare interface TypeCheckFunc {
    (value: any, name: string): null;
    isRequired?: TypeCheckFunc;
    load?: (value: any) => any;
    ref?: typeof Model;
}
/**
 * ReferenceTypeOption can specify the options of reference type.
 */
export interface ReferenceTypeOption {
    /**
     * eager:
     *  If it's true, methods like `find` will try to load the newest data for the referenced models.
     *  Otherwise the referenced models will be just decoded class instances stored under this parent's namespace.
     */
    eager?: boolean;
}
export declare const Types: {
    array: TypeCheckFunc;
    bool: TypeCheckFunc;
    number: TypeCheckFunc;
    object: TypeCheckFunc;
    string: TypeCheckFunc;
    date: TypeCheckFunc;
    arrayOf: (checkValue: TypeCheckFunc) => TypeCheckFunc;
    dictOf: (checkValue: TypeCheckFunc) => TypeCheckFunc;
    reference: (refConstructor: typeof Model, opt?: ReferenceTypeOption) => TypeCheckFunc;
    shape: (validations?: {
        [key: string]: TypeCheckFunc;
    }) => TypeCheckFunc;
};