import type * as React from 'react';
import type { PassThroughProps } from '../utils/passThrough.js';
import type { ComboboxInputProps, ComboboxOption, ComboboxOptionOrGroup } from './types.js';
/** Case-insensitive substring match — the default filter for a derived `options` combobox or autocomplete. */
export declare function defaultOptionsFilter(text: string, inputValue: string): boolean;
/**
 * Renders Combobox anatomy from `options`: input, portal, and listbox.
 * @internal
 */
export declare const ComboboxAnatomy: ({ shape, size, options, renderOption, placeholder, ariaLabel, passThrough, portalContainer, }: {
    shape?: ComboboxInputProps["shape"] | undefined;
    size?: ComboboxInputProps["size"] | undefined;
    options: ComboboxOptionOrGroup[];
    renderOption?: ((option: ComboboxOption, state: {
        selected: boolean;
    }) => React.ReactNode) | undefined;
    placeholder?: string | undefined;
    ariaLabel?: string | undefined;
    passThrough?: PassThroughProps | undefined;
    portalContainer?: Element | DocumentFragment | null | undefined;
}) => React.JSX.Element;