Memoize::AnyDBM_File − glue to provide EXISTS for AnyDBM_File for Storable use
This class does the same thing as AnyDBM_File, except that instead of NDBM_File itself it loads Memoize::NDBM_File if NDBM_File lacks EXISTS support.
Code which requires perl 5.37.3 or newer should simply use AnyBDM_File directly.