Can't connect to Cisco ASR9K

[ceccohost]

NetBox Napalm Plugin version

v0.2.1

NetBox version

v4.0.5

Python version

3.11

Steps to Reproduce

I set up platform IOS-XR with napalm driver iosxr_netconf and set up Cisco ASR so I can login from command line with command
napalm --user user --password 'passwsord' --vendor iosxr_netconf --optional_args 'allow_agent=False' xxx.xxx.xxx.xxx call get_facts
So I add
{"allow_agent": "False"}
to NAPALM arguments to platform.
(Without optional arg "allow_agent=False" napalm command line failes with
napalm.base.exceptions.ConnectionException: SSHException('No existing session'))

Expected Behavior

Device should show "Status", "LLDP Neighbors", "Config" tabs

Observed Behavior

I got an error:
Error Fetching Device Config
Error connecting to device at xxx.xxx.xxx.xxx:
SSHException('No existing session')

[cruse1977]

Hi, this is specific to IOS-XR and can be resolved by resolved by adding the optional args into the platform config, so I'm not sure this a bug or issue ?