old_contents: from django.core.management.base import BaseCommand, CommandError
  
  from fjord.heartbeat.healthchecks import run_healthchecks, email_healthchecks
  
  
  class Command(BaseCommand):
      help = 'Runs heartbeat health checks and sends email'
  
      def handle(self, *args, **options):
          email_healthchecks(run_healthchecks())
          print 'Done!'
  
new_contents: from django.core.management.base import BaseCommand
  
  from fjord.heartbeat.healthcheck import run_healthchecks, email_healthchecks
  
  
  class Command(BaseCommand):
      help = 'Runs heartbeat health checks and sends email'
  
      def handle(self, *args, **options):
          email_healthchecks(run_healthchecks())
          print 'Done!'
  
subject: Fix imports after renaming healthcheck module