function .ipam.get_next_available_ip(prefix=prefix) does not work.

[oceans1908]

netbox.ipam.get_next_available_ip(prefix='x.x.x.x/xx')

File "/usr/local/lib/python3.9/site-packages/netbox/ipam.py", line 178, in get_next_available_ip
return self.netbox_con.get(param, limit=1)[0]['address']
File "/usr/local/lib/python3.9/site-packages/netbox/connection.py", line 96, in get
return resp_data['results']
TypeError: list indices must be integers or slices, not str

[jagter]

It's not working with the fix in #52 yet. Needs to be fix in a new release.