import { Circ } from 'json10';
type DeepPartial<T> = {
    [K in keyof T]?: T[K] extends object ? DeepPartial<T[K]> : T[K];
};
export type ModelValue<T> = DeepPartial<T> | Partial<Record<MappingFrom<T>, any>>;
type Constructor<T = any> = new (...args: any[]) => T;
type DecrementDepth = [never, 0, 1, 2, 3, 4, 5];
type MappingFrom<T, Depth extends number = 5> = [Depth] extends [never] ? never : {
    [K in keyof T & string]: T[K] extends Primitive ? K : T[K] extends Array<infer U> ? K | `${K}.${MappingFrom<U, DecrementDepth[Depth]>}` : K | `${K}.${MappingFrom<T[K], DecrementDepth[Depth]>}`;
}[keyof T & string];
/**
 * Mapping schema that can be set from decorator
 *
 * @DefaultMapping(() => ({
 *   '': User,
 *   'book': Book,
 *   'book.author': Author,
 * }))
 * class User { }
 *
 */
export type EncodeSchema<T = any> = {
    ''?: Constructor<T>;
} & {
    [K in MappingFrom<T>]?: Constructor<any> | [Constructor<any>];
};
/**
 * Mapping schema returned or sended inside http headers
 */
export type EncodeSchemaString<T = any> = {
    ''?: string;
    '[]'?: string[];
} & {
    [K in MappingFrom<T>]?: string | string[];
};
type Primitive = string | number | boolean | bigint | symbol | null | undefined | Date | Function;
export declare function DefaultMapping<T>(mapping?: () => EncodeSchema<T>): (target: Constructor<T>) => void;
export declare function DefaultModel<T>(defaults?: () => ModelValue<T>): (target: Constructor<T>) => void;
export declare function getDefaultModel<T>(instanceOrClass: T | Constructor<T>): ModelValue<T> | undefined;
export declare function getDefaultMappingSingleObjOrClass<T>(instanceOrClass: T | Constructor<T>): EncodeSchema<T> | undefined;
/**
 * This will be send in request header to later restore class mapping
 */
export declare function getMappingHeaderString<T = any>(instanceOrClass: T | Constructor<T> | (T | Constructor<T>)[]): string;
/**
 *
 * @param instanceOrClass class instance or class object
 * OR array of class instancess or class objects
 * @returns Mapping object ready to be JSON.stringify
 */
export declare function decodeMappingForHeaderJson<T>(instanceOrClass: T | Constructor<T> | (T | Constructor<T>)[], options?: {
    useFirstArrayItemClassNameForAllElements?: boolean;
}): EncodeSchemaString<T>;
export declare const encodeMapping: <T>(input: any, schema: EncodeSchema | EncodeSchemaString, circular?: Circ[]) => T;
export {};