copy method
Copies from src to dst until either EOF (null) is read from src or
an error occurs. It resolves to the number of bytes copied or rejects with
the first error encountered while copying.
Implementation
_i2.Future<_i2.num> copy(
_i4.Reader src,
_i4.Writer dst, [
_i4.IInline1? options,
]) =>
_i3.promiseToFuture(_i3.callMethod(
this,
'copy',
[
src,
dst,
options ?? _i6.undefined,
],
));