def year_frac(self) -> YearFracRequestBuilder:
        """
        Provides operations to call the yearFrac method.
        """
        from .year_frac.year_frac_request_builder import YearFracRequestBuilder

        return YearFracRequestBuilder(self.request_adapter, self.path_parameters)

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