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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_status_query_managers(sender, **kwargs):
 """ Add a Querymanager for each status item dynamically. """

    if not issubclass(sender, StatusModel):
        return

    if django.VERSION >= (1, 10):
        # First, get current manager name...
        default_manager = sender._meta.default_manager

    for value, display in getattr(sender, 'STATUS', ()):
        if _field_exists(sender, value):
            raise ImproperlyConfigured(
                "StatusModel: Model '%s' has a field named '%s' which "
                "conflicts with a status of the same name."
                % (sender.__name__, value)
            )
        sender.add_to_class(value, QueryManager(status=value))

    if django.VERSION >= (1, 10):
        # ...then, put it back, as add_to_class is modifying the default manager!
        sender._meta.default_manager_name = default_manager.name