WireMock

:wave:  hi! I am having a problem when trying to use a helper inside a template, have been looking for hors in the docs but can't find anything, details in :thread:

I am enabling templating globally when creating the server, like

```private val wireMockServer = new WireMockServer(
    wireMockConfig().port(port).globalTemplating(true)
  )```

and trying to use inside my template a header value, using val as I want it to be `null` if the header is not present as a default value

```"emId": "{{val request.headers.emId}}",```

this worked fine before adding "val" helper but now it throws an error as the helper can't be found but according to the docs it should be available?

```&lt;tr&gt;&lt;th&gt;URI:&lt;/th&gt;&lt;td&gt;/v1/mock&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;th&gt;STATUS:&lt;/th&gt;&lt;td&gt;500&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;th&gt;MESSAGE:&lt;/th&gt;&lt;td&gt;com.google.common.util.concurrent.UncheckedExecutionException: com.github.jknack.handlebars.HandlebarsException: inline@5bc7c21:1:2: could not find helper: &amp;apos;val&amp;apos;
{{val request.headers.emId}}
  ^
&lt;/td&gt;&lt;/tr&gt;```

Hi.  What version of WireMock are you using?

The `val` helper was released as part of WireMock `3.6.0` so you will need to be using that version to use the `val` helper

ahhhh damn I am using `3.5.4` :woman-facepalming: