export declare type Expression<T> = (t: T) => any;
export declare type LambdaExpression<T> = (t: T) => boolean;
export declare type WhereExpression<T> = (t: T, index: number) => boolean;
export declare type ValueExpression<T> = (t: T) => any;
export declare type ReturnExpression<TReturn, T> = (t: T) => TReturn;
export declare type DoubleExpression<TReturn, A, B> = (a: A, b: B) => TReturn;
export interface Group<K, V> {
    key: K;
    group: V[];
}
export declare enum Order {
    ASC = 0,
    DESC = 1,
}