import { default as React } from 'react';
export type CollapseButtonArrowType = 'default' | 'secondary';
export type CollapseButtonSize = 'default' | 'small';
export interface CollapseButtonProps extends Omit<React.ButtonHTMLAttributes<HTMLButtonElement>, 'type' | 'onChange' | 'children'> {
    /**
     * Current open state. Bind alongside `onOpenChange` to keep in sync.
     */
    open: boolean;
    /**
     * Called when the user toggles the button. Receives the next open state.
     * Standard native `onClick` still fires too; if it calls `preventDefault`
     * the toggle is suppressed.
     */
    onOpenChange?: (next: boolean) => void;
    /**
     * Label shown when collapsed. Rendered literally — translate at the call
     * site if needed. When omitted, falls back to the `LabelProvider`'s
     * translated `'open'` label.
     */
    openText?: string;
    /**
     * Label shown when expanded. Rendered literally — translate at the call
     * site if needed. When omitted, falls back to the `LabelProvider`'s
     * translated `'close'` label.
     */
    closeText?: string;
    /**
     * Hide the label and render the chevron only.
     * @default false
     */
    hideText?: boolean;
    /**
     * Chevron style. Only takes effect with `hideText` (icon-only mode).
     * @default default
     */
    arrowType?: CollapseButtonArrowType;
    /**
     * Visual size.
     * @default default
     */
    size?: CollapseButtonSize;
    /**
     * Light text and icon for placement on a dark / brand background. Ignored
     * when `arrowType` is `secondary` (no inverted form in the design).
     * @default false
     */
    inverted?: boolean;
    /**
     * Underline the text label. Set `false` in contexts where the chevron is
     * the sole affordance (e.g. inside an accordion header). Has no effect in
     * icon-only mode.
     * @default true
     */
    underline?: boolean;
    /**
     * Accessible label. Required when `hideText` is `true`.
     */
    'aria-label'?: string;
}
export declare const CollapseButton: React.ForwardRefExoticComponent<CollapseButtonProps & React.RefAttributes<HTMLButtonElement>>;
export default CollapseButton;