## isQuantity() function

Determines if the input is a Quantity object. This is heuristic based, as we do not have strong typing at runtime.

**Signature:**

```typescript
export declare function isQuantity(input: unknown): input is Quantity;
```

## Parameters

| Parameter | Type     | Description                    |
|-----------|----------|--------------------------------|
| input     | unknown  | The input value.               |

**Returns:**

input is Quantity

True if the input is a quantity.

- [isQuantity() function](/content/docs/sdk/core.isquantity#isquantity-function/index.html)
- [Parameters](/content/docs/sdk/core.isquantity#parameters/index.html)