## FhirFilterNegation class  
The FhirFilterNegation class represents a negation expression. It contains a single child expression.

**Signature:**
```typescript
export declare class FhirFilterNegation
```

## Constructors  
| Constructor | Modifiers | Description |
| --- | --- | --- |
| [(constructor)(child)](/content/docs/sdk/core.fhirfilternegation._constructor_/index.html) |  | Constructs a new instance of the `FhirFilterNegation` class |

## Properties  
| Property | Modifiers | Type | Description |
| --- | --- | --- | --- |
| [child](/content/docs/sdk/core.fhirfilternegation.child) | `readonly` | [FhirFilterExpression](/content/docs/sdk/core.fhirfilterexpression) |  |

- [FhirFilterNegation class](/content/docs/sdk/core.fhirfilternegation#fhirfilternegation-class/index.html)
- [Constructors](/content/docs/sdk/core.fhirfilternegation#constructors/index.html)
- [Properties](/content/docs/sdk/core.fhirfilternegation#properties/index.html)