def _d(h, cls, state):
op, args, length, variables, symbolic, annotations = state<EOL>return cls.__new__(cls, op, args, length=length, variables=variables, symbolic=symbolic, annotations=annotations, hash=h)<EOL>
This function is the deserializer for ASTs.
It exists to work around the fact that pickle will (normally) call __new__() with no arguments during deserialization.
For ASTs, this does not work.