import type { ChartColorLegend, ChartKey, ChartLegendPlacement } from './types.js';
import type { ControlledSignal } from './interaction-signal.js';
export interface InteractiveColorLegendChange<TValue extends ChartKey> {
    type: 'toggle';
    value: TValue;
    visible: boolean;
}
export interface InteractiveColorLegendItemContext {
    readonly visible: boolean;
}
export interface InteractiveColorLegendOptions<TValue extends ChartKey> {
    visible: ControlledSignal<readonly TValue[], InteractiveColorLegendChange<TValue>>;
    placement?: ChartLegendPlacement;
    ariaLabel?: string;
    itemWidth?: number;
    format?: (value: TValue) => string;
    itemAriaLabel?: (value: TValue, context: InteractiveColorLegendItemContext) => string;
    emptyLabel?: string;
}
export declare function interactiveColorLegend<TValue extends ChartKey>(options: InteractiveColorLegendOptions<TValue>): ChartColorLegend;