import { Directive, type PartInfo } from '../../lit-exports/all-lit-exports.js';
/**
 * Parameters for the callback given to the {@link mutate} directive.
 *
 * @category Internal
 */
export type MutateDirectiveParams<Params extends any[] = []> = {
    directive: Directive;
    element: HTMLElement;
    params: Params;
};
/**
 * A directive that allows arbitrary modifications to be made to the element that it's attached to.
 *
 * @category Directives
 */
export declare const mutate: (callback: (params: Omit<MutateDirectiveParams, "params">) => void) => import("lit-html/directive.js").DirectiveResult<{
    new (partInfo: PartInfo): {
        readonly element: HTMLElement;
        lastKey: string | undefined;
        render(callback: (params: Omit<MutateDirectiveParams, "params">) => void): symbol;
        get _$isConnected(): boolean;
        update(_part: import("lit-html").Part, props: Array<unknown>): unknown;
    };
}>;
/**
 * A helper for making new directives.
 *
 * @category Internal
 */
export declare function createMutateDirective<Params extends any[]>(directiveName: string, callback: (this: void, params: MutateDirectiveParams<Params>) => void): (...values: Params) => import("lit-html/directive.js").DirectiveResult<{
    new (partInfo: PartInfo): {
        readonly element: HTMLElement;
        render(...params: Params): symbol;
        get _$isConnected(): boolean;
        update(_part: import("lit-html").Part, props: Array<unknown>): unknown;
    };
}>;