/**
 * Dev-only hook that tracks render count and reports which props
 * changed (by shallow referential equality) since the last render.
 *
 * In production builds the function body is dead-code-eliminated by
 * bundlers that replace `process.env.NODE_ENV` with `"production"`.
 *
 * @param componentName - Stable label for console output.
 * @param props - Key/value map of props to track. Pass only the props
 *   you care about — typically the ones that drive re-renders.
 */
export declare function useRenderTracer(componentName: string, props: Record<string, unknown>): void;
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