# StringIO
-# Undocumented entities
+This module contains file I/O related functions that read and
+write contents of textual files into/from String instances.
-::undocumented[]
\ No newline at end of file
+## Reading
+
+::value[readLines]
+::value[readLinesWithCharset]
+::value[readContentsWithCharset]
+
+## Writing
+
+::value[writeLines]
+::value[appendLine]