text: from __future__ import absolute_import
  
  from rest_framework.response import Response
  
  from sentry.api import client
  from sentry.api.base import DocSection
  from sentry.api.bases.group import GroupEndpoint
  from sentry.models import Group
  from sentry.utils.apidocs import scenario, attach_scenarios
  
  
  @scenario('GetOldestGroupSample')
  def get_oldest_group_sample_scenario(runner):
      project = runner.default_project
      group = Group.objects.filter(project=project).last()
      runner.request(
          method='GET',
          path='/issues/%s/events/oldest/' % group.id,
      )
  
  
  class GroupEventsOldestEndpoint(GroupEndpoint):
      doc_section = DocSection.EVENTS
  
      @attach_scenarios([get_oldest_group_sample_scenario])
      def get(self, request, group):
          """
          Retrieve the Oldest Event for an Issue
          ``````````````````````````````````````
  
          Retrieves the details of the oldest event for an issue.
  
          :pparam string group_id: the ID of the issue
          """
          event = group.get_oldest_event()
          if not event:
              return Response({'detail': 'No events found for group'}, status=404)
  
          try:
              return client.get(u'/projects/{}/{}/events/{}/'.format(
                  event.organization.slug,
                  event.project.slug,
                  event.event_id
              ), request=request)
          except client.ApiError as e:
              return Response(e.body, status=e.status_code)
  