import type { StackToolbarSpacerProps } from './types';
import type { NativeStackHeaderItemSpacing } from '../../../../react-navigation/native-stack';
export type { StackToolbarSpacerProps, NativeToolbarSpacerProps } from './types';
/**
 * A spacing helper used inside `Stack.Toolbar` to create empty space between toolbar items.
 *
 * In left/right placements, width is required.
 * In bottom placement, if width is not provided, creates a flexible spacer that expands to fill space.
 *
 * > **Note:** Flexible spacers are iOS-only. On Android, `width` is a required property
 *
 * @example
 * ```tsx
 * import { Stack } from 'expo-router';
 *
 * export default function Page() {
 *   return (
 *     <>
 *       <Stack.Toolbar placement="left">
 *         <Stack.Toolbar.Button icon="arrow.left" />
 *         <Stack.Toolbar.Spacer width={8} />
 *         <Stack.Toolbar.Button icon="arrow.right" />
 *       </Stack.Toolbar>
 *       <ScreenContent />
 *     </>
 *   );
 * }
 * ```
 *
 * @example
 * ```tsx
 * import { Stack } from 'expo-router';
 *
 * export default function Page() {
 *   return (
 *     <>
 *       <Stack.Toolbar>
 *         <Stack.Toolbar.Spacer />
 *         <Stack.Toolbar.Button icon="search" />
 *         <Stack.Toolbar.Spacer />
 *       </Stack.Toolbar>
 *       <ScreenContent />
 *     </>
 *   );
 * }
 * ```
 *
 * @platform android
 * @platform ios
 */
export declare const StackToolbarSpacer: React.FC<StackToolbarSpacerProps>;
export declare function convertStackToolbarSpacerPropsToRNHeaderItem(props: StackToolbarSpacerProps): NativeStackHeaderItemSpacing | undefined;
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