import { ReactElement, ReactNode } from 'react';
/**
 * Detector callback: given the React element whose `displayName` matched the
 * registry key, return the partial feature-prop record to auto-enable the
 * corresponding plugin. Return `undefined` to skip.
 *
 * @typeParam TFeatures - Adapter `FeatureProps` shape.
 */
export type ChildFeatureDetector<TFeatures = Record<string, unknown>> = (element: ReactElement) => Partial<TFeatures> | undefined;
/**
 * Install a child-feature detector keyed by React `displayName`. Re-registering
 * the same displayName replaces the previous detector (HMR-friendly). Called
 * by feature secondary entries on import.
 *
 * @internal Plugin API
 */
export declare function registerChildFeatureDetector<TFeatures = Record<string, unknown>>(displayName: string, detector: ChildFeatureDetector<TFeatures>): void;
/**
 * Scan `children` and merge every matching detector's output into a single
 * partial feature-prop record. Later children override earlier ones for the
 * same feature key — same precedence the inline `detectChildComponentFeatures`
 * had before extraction.
 *
 * @internal `<DataGrid>` `featureProps` memo use only.
 */
export declare function detectChildFeatures<TFeatures = Record<string, unknown>>(children: ReactNode): Partial<TFeatures>;
/**
 * Test-only: clear all registered detectors so specs assert in isolation.
 *
 * @internal
 */
export declare function clearChildFeatureDetectors(): void;
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