Encodes {@code value} .
{@code value}
this writer.
the literal string value, or null to encode a null literal.
a finite value. May not be NaNs or .
Writes {@code source} directly without encoding its contents. Equivalent to {@code try * (BufferedSink sink = writer.valueSink()) { source.readAll(sink): }}
{@code source}
{@code try * (BufferedSink sink = writer.valueSink()) { source.readAll(sink): }}