export interface ObjectType {
    [key: string]: Type;
}
type LiteralType = string | number | boolean;
type SimpleType = string | LiteralType | RegExp | undefined | null;
type ScalarType = ObjectType | SimpleType;
export type ArrayType = ScalarType[];
export type UnionType = (ScalarType | ArrayType)[][];
export type ValidationFn = (obj: unknown) => ValidationError[];
export type FunctionType = ValidationFn | CheckFn;
export type Type = ScalarType | ArrayType | UnionType | FunctionType;
export type Key = (string | number)[];
export interface ValidationError {
    message: string;
    key: Key;
    expected?: string;
}
type CheckFn = (obj: unknown) => boolean;
export declare class InvalidSchemaError extends Error {
}
export interface TypeMap {
    [type: string]: Type;
}
export interface ParseOptions {
    customTypes?: TypeMap;
}
export interface PrintOptions {
    quote?: boolean;
    useExport?: boolean;
}
export {};