def by_disposition_review_stage_stage_number(self,disposition_review_stage_stage_number: str) -> DispositionReviewStageStageNumberItemRequestBuilder:
        """
        Provides operations to manage the dispositionReviewStages property of the microsoft.graph.security.retentionLabel entity.
        param disposition_review_stage_stage_number: The unique identifier of dispositionReviewStage
        Returns: DispositionReviewStageStageNumberItemRequestBuilder
        """
        if disposition_review_stage_stage_number is None:
            raise TypeError("disposition_review_stage_stage_number cannot be null.")
        from .item.disposition_review_stage_stage_number_item_request_builder import DispositionReviewStageStageNumberItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["dispositionReviewStage%2DstageNumber"] = disposition_review_stage_stage_number
        return DispositionReviewStageStageNumberItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the dispositionReviewStages property of the microsoft.graph.security.retentionLabel entity.
        param disposition_review_stage_stage_number: The unique identifier of dispositionReviewStage
        Returns: DispositionReviewStageStageNumberItemRequestBuilder
        
msgraph/generated/security/labels/retention_labels/item/disposition_review_stages/disposition_review_stages_request_builder.py