import React from 'react';
/**
 * Custom component override type
 * Allows replacing default components with custom implementations
 */
export type CustomComponentOverride<P = any> = React.ComponentType<P>;
/**
 * Custom function override type
 * Allows replacing default functions with custom implementations
 */
export type CustomFunctionOverride<F extends (...args: any[]) => any> = F;
/**
 * Helper function to apply component overrides
 * Returns the override component if provided, otherwise returns the default component
 *
 * @param override - Optional custom component to use instead of default
 * @param defaultComponent - The default component to use if no override is provided
 * @returns The component to render (either override or default)
 */
export declare function withOverride<P = any>(override: CustomComponentOverride<P> | undefined, defaultComponent: React.ComponentType<P>): React.ComponentType<P>;
/**
 * Helper function to apply function overrides
 * Returns the override function if provided, otherwise returns the default function
 *
 * @param override - Optional custom function to use instead of default
 * @param defaultFunction - The default function to use if no override is provided
 * @returns The function to use (either override or default)
 */
export declare function withFunctionOverride<F extends (...args: any[]) => any>(override: CustomFunctionOverride<F> | undefined, defaultFunction: F): F;