export declare class ArrayStringifier<T> {
    protected array: readonly T[];
    protected separator: string;
    protected postfix: string;
    protected prefix: string;
    constructor(array?: readonly T[], separator?: string);
    setArray(array: readonly T[]): this;
    setPostfix(postfix: string): this;
    setPrefix(prefix: string): this;
    setSeparator(separator: string): this;
    toString(): string;
    protected canAddPostfix(): boolean;
    protected canAddPrefix(): boolean;
    protected getPostfix(): string;
    protected getPrefix(): string;
    protected getSeparator(index: number, element: T): string;
    protected getStringifiedElement(index: number, el: T): string;
}