Make Ruby Code More Readable with Kernel#then Alias

From Ruby 2.6.0-preview2 changelog [1]:

Add a new alias then to Kernel#yield_self. [Feature #14594]

This allows to chain method calls on an object, like so:

posts =
  URI.parse("https://api.somewebsite.com/posts.json")
     .then { |it| Net::HTTP.get(it) }
     .then { |it| JSON.parse(it) }