| 123456789101112131415161718192021 | from core.tools.errors import ToolProviderCredentialValidationErrorfrom core.tools.provider.builtin.duckduckgo.tools.ddgo_search import DuckDuckGoSearchToolfrom core.tools.provider.builtin_tool_provider import BuiltinToolProviderControllerclass DuckDuckGoProvider(BuiltinToolProviderController):    def _validate_credentials(self, credentials: dict) -> None:        try:            DuckDuckGoSearchTool().fork_tool_runtime(                runtime={                    "credentials": credentials,                }            ).invoke(                user_id="",                tool_parameters={                    "query": "John Doe",                },            )        except Exception as e:            raise ToolProviderCredentialValidationError(str(e))
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