```{index} single: Memoize::SDBM_File ``` # Memoize::SDBM_File Memoize::SDBM\_File - DEPRECATED compatibility shim ## DESCRIPTION This class used to provide [EXISTS](https://perldoc.perl.org/perltie) support for [SDBM\_File](../SDBM_File.md) before support for `EXISTS` was added to [SDBM\_File](../SDBM_File.md) itself [in Perl 5.6.0](https://perldoc.perl.org/perl56delta). Any code still using this class should be rewritten to use [SDBM\_File](../SDBM_File.md) directly.