Hi Dave,
the documentation on search.cpan.org
(http://search.cpan.org/~drolsky/Params-Validate-0.99/) only links to
the docu for Params::Validate::XS, which is essentially empty. This is
true for versions 0.97-0.99. You have to go back to 0.96 to read the
docu of the Params::Validate interface.
Cheers,
Lutz