@loopback/docs/site/apidocs/metadata.methoddecoratorfactory.mergewithinherited.md

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---
lang: en
title: 'API docs: metadata.methoddecoratorfactory.mergewithinherited'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
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editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/metadata
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---

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[Home](./index.md) &gt; [@loopback/metadata](./metadata.md) &gt; [MethodDecoratorFactory](./metadata.methoddecoratorfactory.md) &gt; [mergeWithInherited](./metadata.methoddecoratorfactory.mergewithinherited.md)

## MethodDecoratorFactory.mergeWithInherited() method

**Signature:**

```typescript
protected mergeWithInherited(inheritedMetadata: MetadataMap<T>, target: Object, methodName?: string, methodDescriptor?: TypedPropertyDescriptor<any> | number): MetadataMap<T>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  inheritedMetadata | [MetadataMap](./metadata.metadatamap.md)<!-- -->&lt;T&gt; |  |
|  target | Object |  |
|  methodName | string | _(Optional)_ |
|  methodDescriptor | TypedPropertyDescriptor&lt;any&gt; \| number | _(Optional)_ |

**Returns:**

[MetadataMap](./metadata.metadatamap.md)<!-- -->&lt;T&gt;