Surprisingly, it works at first launch (I used a simplified version to avoid having to create a file to be read): 
$ perl -e '
 use strict;
 use warnings;
 use My::Package (keys %My::Package::); # 

 test("hello world\n");
 test_2("hello this is dog");
'
hello world
hello this is dog

[download]
But I am of course not saying it is a good idea to do that.

In reply to Re^2: Is this safe to export and import functions this way? (:all) by Laurent_R
in thread Is this safe to export and import functions this way? by james28909

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