from core.tools.errors import ToolProviderCredentialValidationError from core.tools.provider.builtin.pubmed.tools.pubmed_search import PubMedSearchTool from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController class PubMedProvider(BuiltinToolProviderController): def _validate_credentials(self, credentials: dict) -> None: try: PubMedSearchTool().fork_tool_runtime( meta={ "credentials": credentials, } ).invoke( user_id='', tool_parameters={ "query": "John Doe", }, ) except Exception as e: raise ToolProviderCredentialValidationError(str(e))