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An event entry will look something like this:
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Press (…) > View Event Data to show the webhook Webhook data:
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Clicking the + Create Preview Context icon converts that data into a Preview Context:
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#macro ( helloworld $param1 $param2) <B>Hello $param1 -- $param2 </B> #end |
The Custom Macros are are user editable, the following text contains the render method that will be called from our template, as well as the workflow transition detector 'helper' method.
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This means that the preview icon 
icon (Eye Icon) will dynamically do the rendering and show the result, demonstrating (a) The changelog data contained an issue status change matching what was expected, and (b) The content was rendered via macro invocation:
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