/**
 * Gets keys of the object that partially match the given type.
 *
 * KeysByType<
 *   {
 *     a: string,
 *     b: number,
 *     c: string | number
 *   },
 *   number
 * >
 * Result: "b" | "c"
 */
export declare type KeysByType<T, U> = {
    [K in keyof T]-?: T[K] & U extends never ? never : K;
}[keyof T];
export declare type OmitByType<T, U> = Omit<T, KeysByType<T, U>>;
export declare type MixinPropTypes<ComponentType, PropsType> = ComponentType & {
    defaultProps: Partial<PropsType>;
};