dot sourcing but keeping log files in both scripts

My script runs a setup.ps1 script that gets a lot of general/config settings.
Among those, setup.ps1 assigns $logFile to be basically $myinvovation.mycommand.name.replace('.ps1','.log') so that the log file is the same as the script with a log extension.
In my main script, I wish to do the same - write a log for any information I want to keep track of.  But I suspect, it will overwrite my $logFile variable - is that accurate?
If so, I assume my only option is to simply use another variable, correct?
Or I'm thinking about keeping one log file, but in my function to write to it, precede the data text with the source script name.
Thoughts?
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sirbountyAsked:
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Qlemo"Batchelor", Developer and EE Topic AdvisorCommented:
All that is true, because you dot-source, which makes the script the default scope. You can use a different name, or prefix one of the vars with $global: to give it a different scope. The scope needs to be provided every time you access the var.

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