# INSTANCE_METADATA_SYMBOL

**Kind:** Constant

**Source:** [`packages/core/injector/instance-wrapper.ts`](https://github.com/nestjs/nest/blob/master/packages/core/injector/instance-wrapper.ts#L22)

**Part of:** [Core](subsystem-packages-core)

## Definition

```ts
Symbol.for('instance_metadata:cache')
```

## Value

```ts
Symbol.for('instance_metadata:cache')
```

## Relationships

- IMPORTS → `Logger`
- IMPORTS → `LoggerService`
- IMPORTS → `Provider`
- IMPORTS → `Scope`
- IMPORTS → `Type`
- IMPORTS → `EnhancerSubtype`
- IMPORTS → `FactoryProvider`
- IMPORTS → `InjectionToken`
- IMPORTS → `randomStringGenerator`
- IMPORTS → `isNil`
- IMPORTS → `isString`
- IMPORTS → `isUndefined`