I'm wondering why there are three separate intrinsic functions to get information inside a HEAT template (get_param, get_resource & get_attr).

• Why isn't there one function (just get for example) which covers all three use cases?
• What are the benefits of having to address parameters, resources and attributes with different functions?

The only reason I came up with is that you can use one name multiple times (once as a parameter name, once as a resource name and so on)m but I don't think that's a good reason. Can someone enlighten me?

Reasons for one function "get", instead of "get_param, "get_resource" & "get_attribute":

• easier to learn and remember, only one name instead of three
• less error prone, because stuff "just works" instead of having to remember arbitrary differences and their respective function call ( additionally, heat error messages hide the real reason quite well )
• easier to copy&paste from different scripts. I could copy a get_resource call and would only have to add the resource identifer instead of the resource identifier AND the function call
• KISS: Why make things more complicated than they have to be?

What are advantages of this more complicated, more difficult solution?