def get_value(self, key):
        val = dict.__getitem__(self, key)
        return val[-1] # assumes one value with key name.
Reimplemented from :meth:`~AsyncViewBase.on_error`
dataset/ETHPy150Open kdart/pycopia/WWW/pycopia/WWW/client.py/HTTPForm.get_value--crossover with--dataset/ETHPy150Open couchbase/couchbase-python-client/txcouchbase/bucket.py/BatchedRowMixin.on_error