use Devel::Symdump;

require Your::Module;

my @hashes = grep { ref $_ eq 'HASH' }
             Devel::Symdump->scalars("Your::Module");

##</code><code>##

my @hashes = map &$_, grep /::get(\w+)Struct$/,
             Devel::Symdump->functions("Your::Module");