shiavm006 opened a new issue, #679:
URL: https://github.com/apache/mahout/issues/679
`QuMat.draw()` says it returns a circuit visualization, but all backends
just print the circuit and return `None`. So `viz = qumat.draw()` always gives
you `None`.
### Steps to Reproduce
1. Create a simple circuit with `QuMat` (e.g., 1-qubit Hadamard).
2. Call `viz = qumat.draw()`.
3. Check `viz` in Python.
### Expected Behavior
`draw()` should either return something you can use (string/object) or
clearly say it only prints and returns nothing.
### Actual Behavior
The circuit is printed to stdout, and `viz` is always `None`.
viz = qumat.draw()
circuit is printed here
print(viz)
None### Environment
- **OS:** Any
- **Python Version:** 3.10+
- **Mahout/Qumat Version:** main
- **Backends:** Qiskit, Cirq, Amazon Braket
### Additional Context
Right now the docstring and the actual behavior don’t match, which is
confusing if you try to use the return value.
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