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							- from core.tools.errors import ToolProviderCredentialValidationError
 
- from core.tools.provider.builtin.crossref.tools.query_doi import CrossRefQueryDOITool
 
- from core.tools.provider.builtin_tool_provider import BuiltinToolProviderController
 
- class CrossRefProvider(BuiltinToolProviderController):
 
-     def _validate_credentials(self, credentials: dict) -> None:
 
-         try:
 
-             CrossRefQueryDOITool().fork_tool_runtime(
 
-                 runtime={
 
-                     "credentials": credentials,
 
-                 }
 
-             ).invoke(
 
-                 user_id="",
 
-                 tool_parameters={
 
-                     "doi": "10.1007/s00894-022-05373-8",
 
-                 },
 
-             )
 
-         except Exception as e:
 
-             raise ToolProviderCredentialValidationError(str(e))
 
 
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