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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_group(self, name: str, **kwargs) -> None: """ Add a group to the inventory after initialization """

        group = {
            name: deserializer.inventory.InventoryElement.deserialize_group(
                name=name, defaults=self.defaults, **kwargs
            )
        }
        self.groups.update(group)