# RefPartNode

Represents a reference capture (e.g. `ref="${ref}"`).

## Signatures

```ts
export declare class RefPartNode {
    readonly _tag: "ref";
    readonly index: number;
    constructor(index: number);
}
```

## Why

Refs expose the exact native node and hydration metadata without a component
instance abstraction.

## Ownership and lifetime

The model owns no reference. The render Scope runs ref setup and finalization.

## Constructor

Creates native node-ref syntax.

## Property: _tag

Native-ref discriminant.

## Property: _tag: Why

Selects exact-node ref setup and hydration metadata.

## Property: _tag: Ownership and lifetime

Immutable AST metadata.

## Property: index

Interpolation index producing the ref handler.

## Property: index: Why

Locates the handler for the exact native node.

## Property: index: Ownership and lifetime

Immutable scalar metadata; the render Scope owns setup and finalization.

## Examples

```ts
import { RefPartNode } from "@typed/template/Template"

const part = new RefPartNode(0)
```