def st_dev_a(self) -> StDevARequestBuilder:
        """
        Provides operations to call the stDevA method.
        """
        from .st_dev_a.st_dev_a_request_builder import StDevARequestBuilder

        return StDevARequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to call the stDevA method.
        
msgraph/generated/drives/item/items/item/workbook/functions/functions_request_builder.py