Add option to retrieve stored ibm credentials #799

[natibek]

Adds the option to retrieve stored ibm credentials (#799) by either:

1. setting the use_stored_ibm_credentials parameter to True or
2. passing an IBMProvider() object instance to the ibmq_provider parameter.

First the use_stored_ibm_credentials flag is checked then whether an ibmq_provider is provided. Finally, if neither are set, checks if ibmq_token, ibmq_instance, and ibmq_channel have been set manually.

[richrines1]

two thoughts:

1. unfortunately this package has been deprecated, we should be using qiskit-ibm-runtime instead
2. we don't want qiskit to be a base requirement of general-superstaq. instead maybe we can put this in dev-requirements.txt, and lazy-load it under if use_stored_ibmq_credentials: in superstaq_client (and if it isn't installed raise an error saying that the package is required to load configs)

[natibek]

Ah, I was wondering why the repository was archived. Makes sense :).

[natibek]

2. ... lazy-load it under if use_stored_ibmq_credentials: in superstaq_client (and if it isn't installed raise an error saying that the package is required to load configs)

Would this be a valid application of gss.SuperstaqException?

[richrines1]

i think in this case i'd just go with ModuleNotFoundError

[richrines1]

qiskit runtime allows multiple accounts to be saved to be saved under different names, so we might want to add an argument to allow users to specify an ibmq_name too?

[richrines1]

for runtime i think this will be something like

Suggested change

	ibmq_provider = IBMProvider()
	ibmq_account = qiskit_ibm_runtime.accounts.AccountManager.get(
	channel=ibmq_channel, name=ibmq_name
	)

qiskit runtime allows multiple accounts to be saved to be saved under different names, so we might want to add an argument to allow users to specify an ibmq_name too?

[natibek]

@richrines1,

The user requested pydantic==1.10.7
    checks-superstaq 0.5.33 depends on pydantic>=1.10.7
    qiskit-ibm-runtime 0.34.0 depends on pydantic<2.10 and >=2.5.0

should I change the qiskit-ibm-runtime version? Would removing the requirement for the version let pip install a version that does not cause conflicts?

[richrines1]

should I change the qiskit-ibm-runtime version? Would removing the requirement for the version let pip install a version that does not cause conflicts?

not 100% sure it will work but try qiskit-ibm-runtime>=0.21.0