export declare type AttributeFn<T> = () => Partial<T>;
export declare type ConstructorParameterFn<T extends AnyConstructor> = () => ConstructorParameters<T>;
export declare type AnyConstructor = {
    new (...args: any[]): any;
};
export declare class ClassFactory<T extends AnyConstructor> {
    extraAttributes?: AttributeFn<InstanceType<T>> | Partial<InstanceType<T>>;
    constructorParams?: ConstructorParameterFn<T> | ConstructorParameters<T>;
    clazz: T;
    constructor(clazz: T, constructorParameterFn?: ConstructorParameterFn<T> | ConstructorParameters<T>, attributeCreatorFn?: AttributeFn<InstanceType<T>> | Partial<InstanceType<T>>);
    private parseFnOrValue;
    generate: (attributeOverrides?: AttributeFn<InstanceType<T>> | Partial<InstanceType<T>> | undefined) => InstanceType<T>;
    generateMany: (howMany: number, attributeOverrides?: AttributeFn<InstanceType<T>> | Partial<InstanceType<T>> | undefined) => Array<T>;
    extend: (options: ClassFactoryExtendOptions<T>) => ClassFactory<T>;
}
export interface ClassFactoryExtendOptions<T extends AnyConstructor> {
    constructorParams?: ConstructorParameterFn<T> | ConstructorParameters<T>;
    extraAttributes?: AttributeFn<InstanceType<T>> | Partial<InstanceType<T>>;
}