What Are The Accepted Keys for NSTextView.typingAttributes?
<p>In Swift on macOS, I have the following Text View and want to set the font size of text that is entered into it, like so:</p>

<pre><code>myTextView.typingAttributes = ["Unknown" : NSFont(name: "Helvetica", size: 18)]
</code></pre>

<p>I am currently unable to do this, as I do not know, nor could a find on the 
<a href="https://developer.apple.com/reference/appkit/nstextview" rel="nofollow">Apple Documentation Page</a>, what the accepted keys are for typingAttributes.</p>

<p>Does anyone know what these are, or where to find them? </p>