# RefString.RefString

A RefString is a RefSubject specialized over a string value.

## Signatures

```ts
export interface RefString<in out E = never, out R = never> extends RefSubject.RefSubject<string, E, R> {
}
```

## Why

Defines string state with the same current-read, pushed-update, and synchronized-write contract
as RefSubject.

## Ownership and lifetime

RefString is a contract and performs no acquisition. Implementations retain the errors,
services, interruption, and Scope requirements expressed by its members.