title: How to default to the generic set by Express in its Request interface?
body: <p>I am trying to type of request object. Express's Request interface is,</p>
  <pre><code>    interface Request&lt;
          P = core.ParamsDictionary,
          ResBody = any,
          ReqBody = any,
          ReqQuery = core.Query,
          Locals extends Record&lt;string, any&gt; = Record&lt;string, any&gt;
      &gt; extends core.Request&lt;P, ResBody, ReqBody, ReqQuery, Locals&gt; {}
  </code></pre>
  <p>Is there a way to default to <code>core.ParamsDictionary</code> without passing it into the angle brackets again? This is what I have at the moment:</p>
  <pre><code>const routeSignup = 
    async (
      req: Request&lt;
        core.ParamsDictionary,
        Record&lt;string, unknown&gt;,
        UserSignUpProperties
      &gt;,
      res: Response
    ): Promise&lt;Response&gt; =&gt; {}
  </code></pre>