export declare type Gen<T = unknown> = Generator<T, any, undefined>;
export declare type Operator<T = any, TResult = T> = (source: Seq<T>) => Gen<TResult>;
export declare type SeqConverter<T, TResultSeq extends Iterable<T> | AsyncIterable<T>> = (source: Seq<T>) => TResultSeq;
export declare type SeqToValue<T = any, TResult = any> = (source: Seq<T>) => TResult;
export declare class Seq<T> implements Iterable<T> {
    protected source: Iterable<T>;
    constructor(source: Iterable<T>);
    [Symbol.iterator](): Iterator<T>;
    pipe<T1>(op1: Operator<T, T1>): Seq<T1>;
    pipe<T1, T2>(op1: Operator<T, T1>, op2: Operator<T1, T2>): Seq<T2>;
    pipe<T1, T2, T3>(op1: Operator<T, T1>, op2: Operator<T1, T2>, op3: Operator<T2, T3>): Seq<T3>;
    pipe<T1, T2, T3, T4>(op1: Operator<T, T1>, op2: Operator<T1, T2>, op3: Operator<T2, T3>, op4: Operator<T3, T4>): Seq<T4>;
    pipe<T1, T2, T3, T4, T5>(op1: Operator<T, T1>, op2: Operator<T1, T2>, op3: Operator<T2, T3>, op4: Operator<T3, T4>, op5: Operator<T4, T5>): Seq<T5>;
    pipe<T1, T2, T3, T4, T5, T6>(op1: Operator<T, T1>, op2: Operator<T1, T2>, op3: Operator<T2, T3>, op4: Operator<T3, T4>, op5: Operator<T4, T5>, op6: Operator<T5, T6>): Seq<T6>;
    pipe<T1, T2, T3, T4, T5, T6, T7>(op1: Operator<T1, T2>, op2: Operator<T2, T3>, op3: Operator<T3, T4>, op4: Operator<T4, T5>, op5: Operator<T5, T6>, op6: Operator<T6, T7>): Seq<T7>;
    pipe<T1, T2, T3, T4, T5, T6, T7, T8>(op1: Operator<T1, T2>, op2: Operator<T2, T3>, op3: Operator<T3, T4>, op4: Operator<T4, T5>, op5: Operator<T5, T6>, op6: Operator<T6, T7>, op7: Operator<T7, T8>): Seq<T8>;
    pipe<T1, T2, T3, T4, T5, T6, T7, T8, T9>(op1: Operator<T1, T2>, op2: Operator<T2, T3>, op3: Operator<T3, T4>, op4: Operator<T4, T5>, op5: Operator<T5, T6>, op6: Operator<T6, T7>, op7: Operator<T7, T8>, op8: Operator<T8, T9>): Seq<T9>;
    pipe<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>(op1: Operator<T1, T2>, op2: Operator<T2, T3>, op3: Operator<T3, T4>, op4: Operator<T4, T5>, op5: Operator<T5, T6>, op6: Operator<T6, T7>, op7: Operator<T7, T8>, op8: Operator<T8, T9>, op9: Operator<T9, T10>): Seq<T10>;
    pipe<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>(op1: Operator<T1, T2>, op2: Operator<T2, T3>, op3: Operator<T3, T4>, op4: Operator<T4, T5>, op5: Operator<T5, T6>, op6: Operator<T6, T7>, op7: Operator<T7, T8>, op8: Operator<T8, T9>, op9: Operator<T9, T10>, op10: Operator<T10, T11>): Seq<T11>;
    to<TResultSeq extends Iterable<T> | AsyncIterable<T>>(converter: SeqConverter<T, TResultSeq>): TResultSeq;
    value<TResult>(seqToValue: SeqToValue<T, TResult>): TResult;
    forEach(func: (arg: T) => void): void;
    toMutableArray(): T[];
    toArray(): readonly T[];
}