# PropertyDescription.isOptional property · @imqueue/rpc

Source: https://imqueue.org/api/rpc/latest/rpc.propertydescription.isoptional/
Published: 2026-08-04
Author: @imqueue maintainers (https://github.com/imqueue)
Package: @imqueue/rpc 3.5.3 — generated reference, not hand-written

Whether the property is optional, from the second argument of [property()](https://imqueue.org/api/rpc/latest/rpc.property/). Defaults to `false`, and is never inferred from a TypeScript `?` modifier.

**Signature:**

```typescript
isOptional: boolean;
```