def im_sub(self) -> ImSubRequestBuilder:
        """
        Provides operations to call the imSub method.
        """
        from .im_sub.im_sub_request_builder import ImSubRequestBuilder

        return ImSubRequestBuilder(self.request_adapter, self.path_parameters)

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