@classmethod
def unregister_parser(cls, cobject):
    """Unregister a parser

        This is the opposite of FTrace.register_parser(), it removes a class
        from the list of classes that will be parsed on the trace

        """
    all_scopes = [cls.thermal_classes, cls.sched_classes, cls.dynamic_classes]
    for scope_classes in all_scopes:
        for name, obj in list(scope_classes.items()):
            if cobject == obj:
                del scope_classes[name]
