storage: targetcli basic: TypeError: set_chap() got an unexpected keyword argument 'return_output'

Snippet of test failure

################################################################################
INFO: Setting node.session.auth.password_in to 5 in iscsid.conf
################################################################################
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/stqe/host/atomic_run.py", line 123, in atomic_run
    ret, output = command(return_output=True, **kwargs)
TypeError: set_chap() got an unexpected keyword argument 'return_output'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/stqe/tests/targetcli/cli/iscsi_chap_2ways.py", line 91, in <module>
    errs = iscsi_chap_pass()
  File "/usr/local/lib/python3.10/site-packages/stqe/tests/targetcli/cli/iscsi_chap_2ways.py", line 54, in iscsi_chap_pass
    atomic_run("Setting auth parameters in iscsid config",
  File "/usr/local/lib/python3.10/site-packages/stqe/host/atomic_run.py", line 133, in atomic_run
    ret = command(**kwargs)
  File "/usr/local/lib/python3.10/site-packages/libsan/host/iscsi.py", line 1077, in set_chap
    if not set_iscsid_parameter(**parameters):
  File "/usr/local/lib/python3.10/site-packages/libsan/host/iscsi.py", line 1031, in set_iscsid_parameter
    aug.set('/files/etc/iscsi/iscsid.conf/' + key, kwargs[key])
  File "/usr/lib/python3.10/site-packages/augeas/__init__.py", line 256, in set
    raise TypeError("value MUST be a string or None!")
TypeError: value MUST be a string or None!

Test logs on DataWarehouse

https://datawarehouse.cki-project.org/kcidb/tests/3606603

DataWarehouse issue

https://datawarehouse.cki-project.org/issue/1241

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