# In Memory Adapter for test purposes, it stores files in an internal array. ## Parameters * `files` An array of files *(optional)* The `files` is an array of files where each file is a sub-array having the `content`, `checksum` and `mtime` optional keys. ## Example ``` yaml # app/config/config.yml knp_gaufrette: adapters: foo: in_memory: files: 'file1.txt': ~ 'file2.txt': content: Some content checksum: abc1efg2hij3 mtime: 123456890123 ```