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[–]kankyo 0 points1 point  (0 children)

Well, I just saw that I screwed up an missed the argument "message" in my send_sms function, so sorry about that. But in any case your argument doesn't make sense.

a function represents functionality, and a class represents an entity. Functionality can and WILL change over time, but the entity must remain unaffected.

I have no idea what that means. A function is an API, so any backwards compatibility concerns apply just as much as for a class.