Code completion - yet another question Follow

Hi there,

Lets assume we have:

class A:
    def __init__(self):
        self.var = 1

l = []
l.append(A())
l.append(A())

l[0].var += 1  # no type hint

prettyPrint();
Is there a way to communicate PyCharm the type of the list items, so that I can take advantage of code completion?

I know I can use the following:

for obj in l:
    assert isinstance(obj, A)
    print obj.var  # type hint works

prettyPrint();
However, I would prefer code completion without using isinstance or list iteration as with the above example.  

Please advice,
Sebi