async def get(self,request_configuration: Optional[RequestConfiguration[IssuesRequestBuilderGetQueryParameters]] = None) -> Optional[ServiceHealthIssueCollectionResponse]:
        """
        Retrieve serviceHealthIssue resources from the issues navigation property. This operation retrieves information about all service health issues that exist for the tenant.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[ServiceHealthIssueCollectionResponse]
        Find more info here: https://learn.microsoft.com/graph/api/serviceannouncement-list-issues?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 ....models.service_health_issue_collection_response import ServiceHealthIssueCollectionResponse

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

        Retrieve serviceHealthIssue resources from the issues navigation property. This operation retrieves information about all service health issues that exist for the tenant.
        param request_configuration: Configuration for the request such as headers, query parameters, and middleware options.
        Returns: Optional[ServiceHealthIssueCollectionResponse]
        Find more info here: https://learn.microsoft.com/graph/api/serviceannouncement-list-issues?view=graph-rest-1.0
        
msgraph/generated/admin/service_announcement/issues/issues_request_builder.py