Im trying to set up a method and pass a varible to it then out put the
new manipulated varible back out.   Here is what I have


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var1 = 'test'

def change var_in
  puts var_in
  var_in = 'test1'
  puts var_in
end

change var1

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As you can see, I pass in var1 into the method and then I change the
value to 'test1'.  I would like to method to go back and update var1,
so that if passed into another method it reflects the change that
method change var_in did.  Does this make since?  Im new to
programming.