import { type ReactElement } from 'react';
import type { ErasedVisualizationProps, ErasedWidgetDefinition, VisualizationLikeProps, WidgetDefinition } from './types';
/**
 * Erases the prop types of a strict widget definition so it can be stored next to definitions of
 * other widget types.
 *
 * This is the only cast between strict and erased definitions. `visualization.Component` and
 * `designPanel.Component` take `Props` as a parameter, so they are contravariant in `Props`: a
 * `WidgetDefinition<LineChartProps>` is not assignable to any common type that keeps a callable
 * component. Erasure is safe because readers only forward props, through {@link renderWidgetBody}.
 *
 * @param definition - The strict widget definition.
 * @returns The same definition, typed as an {@link ErasedWidgetDefinition}.
 * @internal
 */
export declare function eraseWidgetDefinition<Props extends VisualizationLikeProps>(definition: WidgetDefinition<Props>): ErasedWidgetDefinition;
/**
 * Renders the body of an erased widget definition. This is the one way to render an erased
 * definition; callers forward props and never read prop types from it.
 *
 * @param definition - The erased widget definition.
 * @param props - Props forwarded to the body.
 * @returns The rendered body element.
 * @internal
 */
export declare function renderWidgetBody(definition: ErasedWidgetDefinition, props: ErasedVisualizationProps): ReactElement;