'Called before Qtile starts managing a new client
Use this hook to declare windows static, or add them to a group on
startup. This hook is not called for internal windows.
**Arguments**
* ``window.Window`` object
Examples
@libqtile.hook.subscribe.client_new
def func(c):
if c.name == "xterm":
c.togroup("a")
elif c.name == "dzen":
c.static(0)'

def client_new(self, func):

    return self._subscribe('client_new', func)
