/** Portal props promoted to flat props on every modal *Content. */
export declare const MODAL_PORTAL_KEYS: readonly ["container", "keepMounted"];
type ModalPortalKey = (typeof MODAL_PORTAL_KEYS)[number];
/**
 * Flat Portal props + typed escape hatches for the Backdrop/Viewport/Portal,
 * derived from a component's own Base UI types so each *Content stays in
 * lockstep with Base UI. Intersect with the Popup props to build a *Content
 * prop type:
 *
 * ```ts
 * type DialogContentProps = ModalContentProps<
 *   React.ComponentProps<typeof BaseDialog.Popup>,
 *   React.ComponentProps<typeof BaseDialog.Portal>,
 *   React.ComponentProps<typeof BaseDialog.Backdrop>,
 *   React.ComponentProps<typeof BaseDialog.Viewport>
 * > & { closeButton?: boolean }
 * ```
 */
export type ModalContentProps<Popup, Portal, Backdrop, Viewport> = Popup & Pick<Portal, Extract<keyof Portal, ModalPortalKey>> & {
    /** Escape hatch: extra props forwarded to the Base UI Portal. */
    portalProps?: Omit<Portal, ModalPortalKey | 'children'>;
    /** Escape hatch: props forwarded to the Base UI Backdrop (e.g. `className`, `style`, `render`). */
    backdropProps?: Omit<Backdrop, 'children'>;
    /** Escape hatch: props forwarded to the Base UI Viewport (e.g. `className`, `style`, `render`). */
    viewportProps?: Omit<Viewport, 'children'>;
};
export interface SplitModalProps {
    portal: Record<string, unknown>;
    popup: Record<string, unknown>;
}
/**
 * Partition a modal *Content component's spread props into the Portal and Popup
 * targets. Flat portal props win over the same keys inside `portalProps`.
 *
 * Destructure `className`/`children`, the `backdropProps`/`viewportProps` escape
 * hatches, and any component-specific props (`backdrop`, `closeButton`, …) out of
 * the props object before calling this - everything left that isn't a known
 * Portal prop is treated as a Popup prop.
 */
export declare function splitModalProps(props: Record<string, unknown>): SplitModalProps;
export {};
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