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  1. or download this
    use My::Tools;

# turns strict on
# turns warnings on
# makes all my usual imports available
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    package My::Tools;

...
);

1; # return true
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    use My::Tools;

$var = 1;   # causes a compile error because we're using strict
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    # simple example of strict contagion
sub import {
    require strict;
    strict->import;
}