def __init__(self, wrapped, *exceptions):
        self._wrapped = wrapped
        self._exceptions = [e for e in exceptions[0]] # arg tuple to list
Iterate over all Field objects within, including multi fields.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/grizzled/grizzled/proxy.py/Forwarder.__init__--crossover with--dataset/ETHPy150Open elastic/elasticsearch-dsl-py/elasticsearch_dsl/field.py/InnerObject._collect_fields