---
layout: stdlib-reference
---

# attribute [allow]

## Signature

<pre>
[<a href="allow.html">allow</a>(<a href="allow.html#decl-diagnostic" class="code_param">diagnostic</a> : <a href="../types/string-0/index.html" class="code_type">String</a>)]
</pre>

## Parameters

####  <a id="decl-diagnostic"></a>diagnostic  : [String](../types/string-0/index.html)