---
url: >-
  /api/specs/schema/types/components/mappers/open-spec/function-nullable-mapper-open-api.md
description: api documentation of nullableMapperOpenApi from @tsed/schema
---

## Usage

```typescript
import { nullableMapperOpenApi } from "@tsed/schema";
```

> See [/packages/specs/schema/src/components/mappers/open-spec/nullableMapper.ts](https://github.com/tsedio/tsed/blob/v8.37.1/packages/specs/schema/src/components/mappers/open-spec/nullableMapper.ts#L0-L0).

## Overview

```ts
function nullableMapperOpenApi(obj: any, schema: JsonSchema | null, options: JsonSchemaOptions): any;
```