# You must 'use' here, since new syntax is being defined:
use My::Exceptions qw< try catch >;  # New syntax: try { ... } catch { ... }

# You can 'require' here, since no impact on syntax:
require My::Utils qw< min max zip >;
# Parens required (no new syntax) when calling min(), max(), or zip().

my $logger = require My::Logger( -trace => 1 );
# Object returned (maybe a factory)!