| 12345678910111213141516171819 | import requestsfrom core.tools.errors import ToolProviderCredentialValidationErrorfrom core.tools.provider.builtin_tool_provider import BuiltinToolProviderControllerclass XinferenceProvider(BuiltinToolProviderController):    def _validate_credentials(self, credentials: dict) -> None:        base_url = credentials.get("base_url")        api_key = credentials.get("api_key")        model = credentials.get("model")        res = requests.post(            f"{base_url}/sdapi/v1/options",            headers={"Authorization": f"Bearer {api_key}"},            json={"sd_model_checkpoint": model},        )        if res.status_code != 200:            raise ToolProviderCredentialValidationError("Xinference API key is invalid")
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