Binary package “libclass-autouse-perl” in ubuntu precise
module for deferring loading ('use'ing) of a class until run time
Class::Autouse allows you to specify a class the will only load when a
method of the class is called. For large classes that might not be used
during the running of a program, such as Date::Manip, this can save
you large amounts of memory, and decrease the script load time.