This is the script i call My::Package functions from:

use strict;
use warnings;

use My::Package (keys %My::Package::); # <-----why does this work?

open (my $file, '<', shift);

print_lines($file);
test("hello world\n");
test_2("hello this is dog");
[download]

And this is my module I created for testing:

package My::Package;

use Exporter qw(import);
@EXPORT_OK = (keys %My::Package::);

use strict;
use warnings;

sub print_lines{
    
    my ($input) = shift;

    while(<$input>){
        print;
    }
    close($input);
}


sub test{
    
    my ($input) = shift;
    print $input;
}

sub test_2{
    
    my ($input) = shift;
    print $input;
}
[download]

Sample input data:

this
is
a
test!!!!
[download]

I just want to know if this is safe to export with @EXPORT_OK = (keys %My::Package::); and import with use My::Package (keys %My::Package::);.

EDIT: Also am I right in thinking that the reason this works is because I am calling that specific module with keys %My::Package::. If i am wrong please help me understand... more better :)

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