I am sure this has been asked a million times already but I find myself coming back to this problem again and again, so I would like to ask the community about the recommended way to handle this, so I can stop thinking about it.  Consider this model.  model = { foo = { bar = { baz = "hello world" } } }  I want to update foo.bar.baz.  How should I do it?  { model | foo.bar.baz = "hello again" } wont work.  I think, foo.bar is synonymous with .bar foo, so it makes sense that I cannot use it on the...