# isPlainObject

**Kind:** Function

**Source:** [`packages/common/utils/shared.utils.ts`](https://github.com/nestjs/nest/blob/master/packages/common/utils/shared.utils.ts#L7)

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

## Signature

```ts
function isPlainObject(fn: any): fn is object
```

## Parameters

| Name | Type |
|---|---|
| `fn` | `any` |

**Returns:** `fn is object`

## 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)

- `KafkaRequest` — `packages/microservices/serializers/kafka-request.serializer.ts`:10