def columns_before(self) -> ColumnsBeforeRequestBuilder:
        """
        Provides operations to call the columnsBefore method.
        """
        from .columns_before.columns_before_request_builder import ColumnsBeforeRequestBuilder

        return ColumnsBeforeRequestBuilder(self.request_adapter, self.path_parameters)

        Provides operations to call the columnsBefore method.
        
msgraph/generated/drives/item/items/item/workbook/tables/item/header_row_range/header_row_range_request_builder.py