To remove all doubt, don't export any functions, then explicitly call the one from the Time::HiRes module: 
use Time::HiRes (); # prevents exporting any functions, although POD s
+ays none are exported anyway
Time::HiRes::sleep(5);

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In reply to Re: Which subroutine or method was called? by toolic
in thread Which subroutine or method was called? by QM

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