Issue "unexpected keyword argument 'func_stack' - using with Flask_Assets in 2.0.5 #133

#!/usr/bin/env python
from flask.ext.script import Manager , Shell, Server
from flask_assets import ManageAssets
from example import app,assets_env

manager = Manager(app)
manager.add_command("runserver" , Server())
manager.add_command("shell",Shell())
manager.add_command("assets", ManageAssets(assets_env))
manager.run()

I am getting following error when I used Flask_Script 2.0.5. Same thing works with Flask_script 0.5x.

Traceback (most recent call last)
File "manage.py", line 10, in
manager.run()
File "/Users/sandipmore/Documents/workspace/magic-chips/backend/venv/lib/python2.7/site-packages/flask_script/init.py", line 412, in run
result = self.handle(sys.argv[0], sys.argv[1:])
File "/Users/sandipmore/Documents/workspace/magic-chips/backend/venv/lib/python2.7/site-packages/flask_script/init.py", line 350, in handle
app_parser = self.create_parser(prog)
File "/Users/sandipmore/Documents/workspace/magic-chips/backend/venv/lib/python2.7/site-packages/flask_script/init.py", line 193, in create_parser
command_parser = command.create_parser(name, func_stack=func_stack, parent=self)
TypeError: create_parser() got an unexpected keyword argument 'func_stack'

What changes does it need to make in the code. Is it issue with supplied argument assets_env?