feat(frontend-python): disable and print tlu fusing

[umut-sahin]

No description provided.

[bcm-at-zama]

• no need to check the default?
• no need to check print_tlu_fusing works as expected?
  @BourgerieQuentin

[umut-sahin]

no need to check print_tlu_fusing works as expected?

This is impossible to check as printing happens in C++.

no need to check the default?

Default is just a boolean and as long as we test both True and False cases, we're testing the default.

[bcm-at-zama]

• OK for prints, but sad
• For default: I would add

  # Fused Tensor
    compiler3 = Compiler(f, {"x": "encrypted"})
    circuit3 = compiler3.compile(
        fhe.inputset(fhe.tensor[fhe.uint3, 3]),  # type: ignore
        helpers.configuration().fork(),
    )
    assert circuit3.programmable_bootstrap_count == 3

or something like that, to check we have really the default we want to have

[umut-sahin]

helpers.configuration().fork()

This doesn't make sense as we're not testing with the default configuration, we have a custom test configuration.

to check we have really the default we want to have

I'll include this piece of code in the beginning of this test:

    # Make sure it's enabled by default
    default_configuration = fhe.Configuration()
    assert default_configuration.enable_tlu_fusing

as a commit to another PR of mine. Sounds good?

[bcm-at-zama]

yes

(I have not understood why my proposal doesn't make sense, you could take a default config and do what I said)