doc "Writes text to a `File`." see (File) shared interface Writer satisfies Closeable { doc "Write text to the file." shared formal void write(String string); doc "Write a line of text to the file." shared formal void writeLine(String line); doc "Flush all written text to the underlying file system." shared formal void flush(); doc "Destroy this `Writer`. Called automatically by `close()`." see (close) shared formal void destroy(); shared actual void open() {} doc "Closes this `Writer` after `flush` is called automatically." shared actual void close(Exception? exception) => destroy(); }