Converts obj to a String by invoking Object.toString and writes the result to this, followed by a newline.
This operation is non-blocking. See flush or done for how to get any errors generated by this call.
void writeln([object = ""]) {
_sink.writeln(object);
}
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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-io/Stdout/writeln.html