##
use Useful::For qw[ ForRange ];
use UseFul::If;
use UseFul::While;
...
####
use Useful;
Use qw[ For If While ];
...
####
use Useful;
Useful {
For => qw[ ForRange ],
If => qw[ :all ],
While => qw[ :all ],
};
####
use Perl qw[ :all ];