This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
Wren-table is a module which enables simple single table databases to be created, accessed and manipulated by the Wren programmer. It consists of three classes: FieldInfo, Table and Records.
It is the fortieth in a series of modules (listed on the language's main page) designed to assist with writing Rosetta Code tasks so the same code does not have to be written or copy/pasted time and time again thereby bloating a task's script code unnecessarily.
To use it you need to copy the Wren source code (in the talk page) to a text file called table.wren and place this in the same directory as the importing script so the command line interpreter can find it.
Wren-table has dependencies on the IO and OS modules which are part of Wren-cli's standard library. As such it can only be used in a Wren-cli script. However, if you need to use the File or Platform classes in your application, these can be imported indirectly via Wren-table.