import { Computed, NativeSignal } from "native-signal/weak";
import { type Child } from "./jsx-runtime";
type Reactive<T = unknown> = NativeSignal<T> | Computed<T>;
type LazyChild = Child | Child[] | (() => Child | Child[]);
/**
 * Switches between two content branches based on a boolean signal/computed.
 * Branches are materialised at most once, on first activation, and cached
 * for all subsequent renders. Inactive nodes are held in a detached fragment
 * so inner signals and state are preserved.
 *
 * `truthy_content` and `falsy_content` may each be a factory function:
 * each is called at most once, the first time its branch becomes active.
 */
export declare function AB(signal: Reactive<any> | NativeSignal<any>, truthy_content: LazyChild, falsy_content: LazyChild): DocumentFragment;
export declare function Switch<T extends string | number | symbol>(signal: Reactive<T> | NativeSignal<T>, cases: Record<T, LazyChild>): DocumentFragment;
export {};
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