Gate tagged with cirq.google.PhysicalZTag does not serialize #3897
Closed
Description
Description of the issue
Cannot serialize a gate with the cirq.google.PhysicalZTag
How to reproduce the issue
>>> import cirq
>>> q = cirq.LineQubit(0)
>>> physical_gate = cirq.Z(q).with_tags(cirq.google.PhysicalZTag)
>>> physical_gate
cirq.TaggedOperation(cirq.Z(cirq.LineQubit(0)), <class 'cirq.google.ops.physical_z_tag.PhysicalZTag'>)
>>> cirq.to_json(physical_gate)
Traceback (most recent call last):
...
TypeError: _json_dict_() missing 1 required positional argument: 'self'
Cirq version
0.10.0