/**
 * Identifier for a `<LayoutGroup>` subtree. Descendants prefix their
 * `layoutId` lookups with this so two `<LayoutGroup>`s containing the
 * same `layoutId` values don't cross-animate.
 *
 * `undefined` means "no enclosing LayoutGroup" — the descendant uses
 * `layoutId` verbatim against the global registry, preserving the
 * existing un-grouped behaviour.
 */
export type LayoutGroupContext = string | undefined;
/**
 * Publish a LayoutGroup id for descendants. Called by `<LayoutGroup>`
 * after computing its own (possibly inherited and chained) id.
 */
export declare const setLayoutGroupContext: (id: LayoutGroupContext) => void;
/**
 * Read the nearest LayoutGroup id, or `undefined` if not inside one.
 *
 * `_MotionContainer.svelte` reads this to prefix `layoutId` when
 * snapshotting and consuming against the registry, so shared-layout
 * animations stay scoped to the surrounding group.
 */
export declare const getLayoutGroupContext: () => LayoutGroupContext;
/**
 * Combine a parent group's id with a descendant LayoutGroup's own id
 * to produce the effective scope id. Mirrors framer-motion's chaining
 * (`"parent-id"` + `"-"` + `"own-id"`).
 *
 * Either side can be `undefined`; the result is the other one, or
 * `undefined` if both are absent.
 */
export declare const chainLayoutGroupId: (parent: LayoutGroupContext, own: string | undefined) => LayoutGroupContext;
/**
 * Apply a LayoutGroup scope to a raw `layoutId` for registry lookups.
 * Returns the un-prefixed id when no group is in scope.
 */
export declare const scopeLayoutId: (groupId: LayoutGroupContext, layoutId: string) => string;