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  1. or download this
    use File::Copy qw(copy);
    use autodie qw(copy);
    ...
    my $x = copy($foo, $bar); # Scalar context, succeeds or dies.
    
    my @x = copy($foo, $bar); # Array context, succeeds or fails silently.
    
  2. or download this
    use File::Copy qw(copy);
    use autodie qw(copy);
    
  3. or download this
    use Some::Module qw(foo);
    use autodie::hints qw( LIST_EMPTY_ONLY SCALAR_UNDEF_ONLY );
    ...
        \&foo,
        LIST_EMPTY_OR_FALSE | SCALAR_UNDEF_ONLY
    );
    
  4. or download this
    use Some::Module qw(foo);
    use autodie::hints;
    ...
        \&foo,
        qw( LIST_EMPTY_OR_FALSE   SCALAR_UNDEF_ONLY )
    );