def unlock(self):
        if self.queue:
            function, argument = self.queue.popleft()
            function(argument)
        else:
            self.locked = False
Determines whether an observable sequence contains a specified
dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/mutex.py/mutex.unlock--crossover with--dataset/ETHPy150Open ReactiveX/RxPY/rx/linq/observable/contains.py/contains