Xamarin.Forms: Hide ListView on Map click?

My app is really simple: it displays a Xamarin.Forms.Map in the top half and a ListView on the bottom half. This is my xaml:

How to document callback parameters in JSDoc for Visual Studio intellisense?

I just cannot figure out how to correctly document callback using @param so that Visual Studio 2017 intellisense will understand it. For example: /** * @param {string} file absolute path * @param {…