Function connect in Model doesn't allow for max_frame_size

[dasm]

Based on the documentation (1), one of allowed parameters is max_frame_size. After providing it as keyword, I got an error

>>> from juju.model import Model
>>> from juju.loop import run
>>> model = Model()
>>> run(model.connect(model_name="openstack", max_frame_size=19491127))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/jujumanage/jujubackupall_packages/juju/loop.py", line 38, in run
    raise task.exception()
  File "/home/jujumanage/jujubackupall_packages/juju/model.py", line 547, in connect
    await self._connector.connect_model(model_name, **kwargs)
TypeError: connect_model() got an unexpected keyword argument 'max_frame_size'
>>> model = Model(max_frame_size=19491127)
>>> run(model.connect("openstack"))
>>> 

[cderici]

Patch some missing arguments in python-libjuju