Integration with kotlin.text.Appendable

[saket]

Should okio offer an BufferedSink -> Appendable adapter for use with kotlinpoet and other libraries that do not accept output streams?

fileSystem.write(path) {
  // Along the lines of BufferedSink#outputStream().
  fileSpec.writeTo(this.appendable())
}

[JakeWharton]

It would probably have to be utf8Appendable(), or on the JVM we could also do appendable(Charset).