The code you have posted is not a "scenario" - it merely declares variables.
Without a usage context, the "my" and "local" have no significance whatsoever.
If you explain how you would like to use them, we will be happy to help you choose between alternatives, if the fine manual does not make that clear.
All great truths begin as blasphemies.
― George Bernard Shaw, writer, Nobel laureate (1856-1950)
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