def METHOD_NAME(self):
    response = self.send_interaction(
        {
            "component_type": DiscordMessageComponentTypes.SELECT,
            "custom_id": f"{CustomIds.ASSIGN}:{self.group.id}",
            "values": [f"user:{self.user.id}"],
        }
    )
    assert self.get_message_content(response) == ASSIGNEE_UPDATED