async def get(self,request_configuration: Optional[RequestConfiguration[AccessPackageRequestBuilderGetQueryParameters]] = None) -> Optional[AccessPackage]:
        """
        The access package associated with the accessPackageAssignmentRequest. An access package defines the collections of resource roles and the policies for how one or more users can get access to those resources. Read-only. Nullable.  Supports $expand.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[AccessPackage]
        """
        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 ......models.access_package import AccessPackage

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

        The access package associated with the accessPackageAssignmentRequest. An access package defines the collections of resource roles and the policies for how one or more users can get access to those resources. Read-only. Nullable.  Supports $expand.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[AccessPackage]
        
msgraph/generated/identity_governance/entitlement_management/assignment_requests/item/access_package/access_package_request_builder.py