async def get(self,request_configuration: Optional[RequestConfiguration[FilterByCurrentUserWithOnRequestBuilderGetQueryParameters]] = None) -> Optional[FilterByCurrentUserWithOnGetResponse]:
        """
        Retrieve all decision items for an instance of an access review or a stage of an instance of a multi-stage access review, for which the calling user is the reviewer. The decision items are represented by accessReviewInstanceDecisionItem objects on a given accessReviewInstance or accessReviewStage for which the calling user is the reviewer.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[FilterByCurrentUserWithOnGetResponse]
        Find more info here: https://learn.microsoft.com/graph/api/accessreviewinstancedecisionitem-filterbycurrentuser?view=graph-rest-1.0
        """
        request_info = self.to_get_request_information(
            request_configuration
        )
        from .........models.o_data_errors.o_data_error import ODataError

        error_mapping: dict[str, type[ParsableFactory]] = {
            "XXX": ODataError,
        }
        if not self.request_adapter:
            raise Exception("Http core is null") 
        from .filter_by_current_user_with_on_get_response import FilterByCurrentUserWithOnGetResponse

        return await self.request_adapter.send_async(request_info, FilterByCurrentUserWithOnGetResponse, error_mapping)

        Retrieve all decision items for an instance of an access review or a stage of an instance of a multi-stage access review, for which the calling user is the reviewer. The decision items are represented by accessReviewInstanceDecisionItem objects on a given accessReviewInstance or accessReviewStage for which the calling user is the reviewer.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[FilterByCurrentUserWithOnGetResponse]
        Find more info here: https://learn.microsoft.com/graph/api/accessreviewinstancedecisionitem-filterbycurrentuser?view=graph-rest-1.0
        
msgraph/generated/identity_governance/access_reviews/definitions/item/instances/item/decisions/filter_by_current_user_with_on/filter_by_current_user_with_on_request_builder.py