'q(addr, ndx = 0) -> int
Leak qword at ``((uint64_t*) addr)[ndx]``
Examples:
>>> import string
>>> data = string.ascii_lowercase
>>> l = MemLeak(lambda a: data[a:a+16], reraise=False)
>>> l.q(0) == unpack(\'abcdefgh\', 64)
True
>>> l.q(18) == unpack(\'stuvwxyz\', 64)
True
>>> l.q(19) is None
True'

def q(self, addr, ndx=0):

    return self._b(addr, ndx, 8)
