Implicit arg1, arg2, etc. was removed long ago. Now you must define any parameters passed to your function that you wish to use. (See Fizzlemizz's post above.)
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"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff, The Tao of Pooh
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