converts the lines into a string with linebreaks . useful for creating in-memory input for a file , for example . concode_field_sep FileSystem fileSystem concode_field_sep Path overwriteFile concode_elem_sep boolean deleteFile concode_elem_sep Path newScratchFile concode_elem_sep Path file concode_elem_sep Path file concode_elem_sep Path file concode_elem_sep FileSystem getFileSystem concode_elem_sep Path dir
String function ( String ... arg0 ) { }