export interface CSSOptions {
    posterUrl: string;
}
type CSSFunction = (options: CSSOptions) => string;
export interface HTMLOptions {
}
type HTMLFunction = (options: HTMLOptions) => string;
export interface JSOptions {
}
type JSFunction = (options: JSOptions) => string;
interface TemplatesFunctions {
    CSS: CSSFunction;
    HTML: HTMLFunction;
    JS: JSFunction;
}
export interface TemplatesOptions {
    CSS: CSSOptions;
    HTML: HTMLOptions;
    JS: JSOptions;
}
export type OnProgress = (ratio: number) => void;
export declare class BaseProgressBar {
    private _templateHTMLFunction;
    private _templateCSSFunction;
    private _templateJSFunction;
    constructor(templatesFunctions: TemplatesFunctions);
    templates(options: TemplatesOptions): {
        CSS: string;
        JS: string;
        HTML: string;
    };
}
export {};