import { Reactions } from "npc-emotional";
export declare class Step {
    private _content;
    private _ender;
    private _choices;
    private _reactions;
    private constructor();
    get content(): string[];
    get isEnder(): boolean;
    get hasChoices(): boolean;
    get choices(): Choices;
    get reactions(): Reactions;
    get hasReactions(): boolean;
    append(text: string): Step;
    static fromContent(content: string, isEnder?: boolean): Step;
    static fromChoices(choices: string[], isEnder?: boolean): Step;
    static fromReactions(reactions: Reactions, isEnder?: boolean): Step;
}
export declare class Choices {
    private _items;
    constructor(items: string[]);
    get count(): number;
    get items(): string[];
    isValidItem(index: number): boolean;
}
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