Make InsertionNoiseModel serializable

[epelaaez]

Is your feature request related to a use case or problem? Please describe.
Currently, InsertionNoiseModel is not serializable, while NoiseModel is. It would be useful if InsertionNoiseModel was serializable as well.

Calling cirq.to_json(noise_model) where noise_model is a InsertionNoiseModel currently raises the following error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)

[...]

File /usr/lib/python3.10/json/encoder.py:179, in JSONEncoder.default(self, o)
    160 def default(self, o):
    161     """Implement this method in a subclass such that it returns
    162     a serializable object for ``o``, or calls the base implementation
    163     (to raise a ``TypeError``).
   (...)
    177 
    178     """
--> 179     raise TypeError(f'Object of type {o.__class__.__name__} '
    180                     f'is not JSON serializable')

 

TypeError: Object of type InsertionNoiseModel is not JSON serializable

Describe the solution you'd like
Being able to call cirq.to_json(noise_model) where noise_model is a InsertionNoiseModel.

What is the urgency from your perspective for this issue? Is it blocking important work?

P1 - Not urgent but would be nice to be able to serialize these noise models

[suyashdamle]

I'd like to take this one up as my first issue

[tanujkhattar]

InsertionNoiseModel is already a dataclass so it should be fairly straightforward to fix this.

[vtomole]

@suyashdamle Go ahead. I've assigned you.

[vtomole]

Hey @suyashdamle, are you working on this? If not, @epelaaez do you want to take this?

[suyashdamle]

Yes - I'm working on it.

[vtomole]

Awesome 👌. Thanks 😊