# fsFlowUnregister<no value>
The **fsFlowUnregister** is used to unregister a callback that has previously been registered in WebAssembly.

 

##### Syntax

``` wasm
bool fsFlowUnregister(
    fsFlowWasmCallback callback
    );
```

 

##### Members

{{< table-wrapper >}}

| Parameters | Description                 |
|------------|-----------------------------|
| `callback` | The callback to unregister. |

{{< /table-wrapper >}}


 

##### Return Values

The function returns `true` if the given callback has been unregistered, otherwise it returns `false`.

 

##### Remarks

N/A