# OPTIONAL_DEPS_METADATA

**Kind:** Constant

**Source:** [`packages/common/constants.ts`](https://github.com/nestjs/nest/blob/master/packages/common/constants.ts#L13)

**Part of:** [Common](subsystem-packages-common)

## Definition

```ts
'optional:paramtypes'
```

## Value

```ts
'optional:paramtypes'
```

## Used by

1 reference from 1 file. Each is a place in this repository where the symbol is actually used — go read one rather than trusting an example.

### Imported by (1)

- `InjectorDependency` — `packages/core/injector/injector.ts`:51