This is an alias of “~chainer.links.StatefulGRU”.
Its documented API is identical to the function.
In Chainer v1,
GRU was stateless,
as opposed to the current implementation.
To align with the naming convension of LSTM links, we have changed
the naming convension from Chainer v2 so that the shorthand name
points the stateful links.
You can use
StatelessGRU for stateless version,
whose implementation is identical to
chainer.linksGRU in v1.
See issue #2537 <https://github.com/pfnet/chainer/issues/2537>_