def handle_bit(self, bit):
        """
        Handle the current bit
        """
        breakpoint = False
        if self.forced_next is not None:
            if bit != self.forced_next:
                raise BreakpointExpected(self.tagname, [self.forced_next], bit)
        elif bit is not self.options.reversed_combined_breakpoints:
            expected = self.options.reversed_combined_breakpoints[bit]
            raise BreakpointExpected(self.tagname, [expected], bit)
        # Check if the current bit is the next breakpoint
        if bit == self.options.next_breakpoint:
            self.handle_next_breakpoint(bit)
            breakpoint = bit
        # Check if the current bit is a future breakpoint
        elif bit in self.options.breakpoints:
            self.handle_breakpoints(bit)
            breakpoint = bit
        # Otherwise it's a 'normal' argument
        else:
            self.handle_argument(bit)
        if bit in self.options.combined_breakpoints:
            self.forced_next = self.options.combined_breakpoints[bit]
        else:
            self.forced_next = None
        # remove from todos
        del self.todo[0]
        return breakpoint
dataset/ETHPy150Open ojii/django-classy-tags/classytags/parser.py/Parser.handle_bit/operator `in` -> `is not`