def atan(self) -> AtanRequestBuilder:
        """
        Provides operations to call the atan method.
        """
        from .atan.atan_request_builder import AtanRequestBuilder

        return AtanRequestBuilder(self.request_adapter, self.path_parameters)

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