from core.tools.errors import ToolProviderCredentialValidationError from core.tools.provider.builtin.duckduckgo.tools.ddgo_search import DuckDuckGoSearchTool from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController class 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))