import { IParameter, TOption, TTypeConverterFn } from "./types";
export declare const defaultTypeConverters: {
    string(value: any, context: any): string;
    number(value: any, context: any): number;
    bool(value: any, context: any): boolean;
};
export declare type TTypeHelperResult<TInput, TType> = TInput & {
    type: TTypeConverterFn<TType, any>;
};
export declare type TTypeHelperOpts = Omit<IParameter<any>, "type"> | Omit<TOption<any>, "type">;
export declare function createTypeHelper<TReturnType>(converterFn: TTypeConverterFn<TReturnType, any>): <T extends TTypeHelperOpts>(opts?: T | undefined) => TTypeHelperResult<T, TReturnType>;
export declare const string: <T extends TTypeHelperOpts>(opts?: T | undefined) => TTypeHelperResult<T, string>;
export declare const number: <T extends TTypeHelperOpts>(opts?: T | undefined) => TTypeHelperResult<T, number>;
export declare const bool: <T extends TTypeHelperOpts>(opts?: T | undefined) => TTypeHelperResult<T, boolean>;
export declare const switchOption: <T extends Pick<TOption<any>, "def" | "shortcut">>(opts?: T | undefined) => T & {
    type: TTypeConverterFn<boolean, any>;
} & {
    option: true;
    isSwitch: true;
};