More methods at runtime

As I expected, I missed some stuff in my last post about adding methods at runtime. One thing is that the idiom for adding class methods is “class < < self" rather than "class << Classname"

More importantly, if you define things like I did in my last post, you will not be able to use variables in the method definition. The things after "class << self" are executed in a different scope that doesn't inherit the variables from the surrounding code.

Fortunately, Ola Bini has

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