import { View } from 'react-native';
import { type TransitionStatus } from '../../internals/useTransitionStatus';
import type { SwitchRootState } from '../root/SwitchRoot';
import type { ZestUIComponentProps } from '../../types';
/**
 * The movable part of the switch that indicates whether the switch is on or off.
 * Renders a `<View>`, or nothing when the switch is unchecked.
 *
 * Follows the animation contract: with `keepMounted`, the thumb stays mounted
 * while unchecked and publishes `transitionStatus` so the consumer can animate
 * it out. Without it, the thumb unmounts the moment it unchecks — React Native
 * cannot report when an exit animation finished.
 */
export declare function SwitchThumb(componentProps: SwitchThumb.Props): import("react").ReactElement<unknown, string | import("react").JSXElementConstructor<any>> | null;
export interface SwitchThumbState extends SwitchRootState {
    /**
     * The transition status of the thumb, for driving enter/exit animations.
     */
    transitionStatus: TransitionStatus;
}
export interface SwitchThumbProps extends ZestUIComponentProps<typeof View, SwitchThumbState> {
    /**
     * Whether to keep the element mounted when the switch is unchecked.
     *
     * Required to animate the thumb out; without it, it unmounts on uncheck.
     * @default false
     */
    keepMounted?: boolean | undefined;
}
export declare namespace SwitchThumb {
    type State = SwitchThumbState;
    type Props = SwitchThumbProps;
}
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