import { Runtime } from '../runtime/Runtime';
export declare type TemplateParams = {
    [key: string]: any;
};
export interface EnvironmentLoop {
    __hasRemaining: boolean;
    __key: any;
    __value: any;
    __next(): void;
    iteration: number;
    index: number;
    remaining: number;
    count: number;
    first: boolean;
    last: boolean;
    odd: boolean;
    even: boolean;
    depth: number;
    parent?: EnvironmentLoop;
}
export interface Environment {
    readonly runtime: Runtime;
    readonly params: TemplateParams;
    process(input: AsyncIterable<string>): AsyncIterable<string>;
    print(text: any, escaped: boolean): AsyncIterable<string>;
    filter(text: any, name: string, ...args: any[]): PromiseLike<string> | string;
    call(name: string, ...args: any[]): AsyncIterable<string>;
    extends(parent: string): AsyncIterable<string>;
    section(name: string, renderer: ((parent: AsyncIterable<string>) => AsyncIterable<string>) | any, isShow: boolean): void | AsyncIterable<string>;
    yield(name: string, def?: string): string | string[] | AsyncIterable<string>;
    pushLoop(iteratee: any): EnvironmentLoop;
    popLoop(): void;
    push(name: string, renderer: () => AsyncIterable<string>, prepend?: boolean): void;
    stack(name: string): AsyncIterable<string>;
    beginComponent(name: string, args?: TemplateParams): void;
    endComponent(): AsyncIterable<string>;
    beginSlot(name: string): void;
    endSlot(): void;
}