old_contents: from django.db import models
  from django.db.models import Manager
  from typing import Dict, Optional, Text
  
  import zerver.models
  import datetime
  
  def get_remote_server_by_uuid(uuid):
      # type: (Text) -> RemoteZulipServer
      return RemoteZulipServer.objects.get(uuid=uuid)
  
  class RemoteZulipServer(models.Model):
      uuid = models.CharField(max_length=36, unique=True) # type: Text
      api_key = models.CharField(max_length=64) # type: Text
  
      hostname = models.CharField(max_length=128, unique=True) # type: Text
      contact_email = models.EmailField(blank=True, null=False) # type: Text
      last_updated = models.DateTimeField('last updated') # type: datetime.datetime
  
  # Variant of PushDeviceToken for a remote server.
  class RemotePushDeviceToken(zerver.models.AbstractPushDeviceToken):
      server = models.ForeignKey(RemoteZulipServer)  # type: RemoteZulipServer
      # The user id on the remote server for this device device this is
      user_id = models.BigIntegerField()  # type: int
  
  class Deployment(models.Model):
      realms = models.ManyToManyField(zerver.models.Realm,
                                      related_name="_deployments") # type: Manager
      is_active = models.BooleanField(default=True) # type: bool
  
      # TODO: This should really become the public portion of a keypair, and
      # it should be settable only with an initial bearer "activation key"
      api_key = models.CharField(max_length=32, null=True) # type: Text
  
      base_api_url = models.CharField(max_length=128) # type: Text
      base_site_url = models.CharField(max_length=128) # type: Text
  
      @property
      def endpoints(self):
          # type: () -> Dict[str, Text]
          return {'base_api_url': self.base_api_url, 'base_site_url': self.base_site_url}
  
      @property
      def name(self):
          # type: () -> Text
  
          # TODO: This only does the right thing for prod because prod authenticates to
          # staging with the zulip.com deployment key, while staging is technically the
          # deployment for the zulip.com realm.
          # This also doesn't necessarily handle other multi-realm deployments correctly
          return self.realms.order_by('pk')[0].domain
  
new_contents: from django.db import models
  from django.db.models import Manager
  from typing import Dict, Optional, Text
  
  import zerver.models
  import datetime
  
  def get_remote_server_by_uuid(uuid):
      # type: (Text) -> RemoteZulipServer
      return RemoteZulipServer.objects.get(uuid=uuid)
  
  class RemoteZulipServer(models.Model):
      uuid = models.CharField(max_length=36, unique=True)  # type: Text
      api_key = models.CharField(max_length=64)  # type: Text
  
      hostname = models.CharField(max_length=128, unique=True)  # type: Text
      contact_email = models.EmailField(blank=True, null=False)  # type: Text
      last_updated = models.DateTimeField('last updated')  # type: datetime.datetime
  
  # Variant of PushDeviceToken for a remote server.
  class RemotePushDeviceToken(zerver.models.AbstractPushDeviceToken):
      server = models.ForeignKey(RemoteZulipServer)  # type: RemoteZulipServer
      # The user id on the remote server for this device device this is
      user_id = models.BigIntegerField()  # type: int
  
  class Deployment(models.Model):
      realms = models.ManyToManyField(zerver.models.Realm,
                                      related_name="_deployments")  # type: Manager
      is_active = models.BooleanField(default=True)  # type: bool
  
      # TODO: This should really become the public portion of a keypair, and
      # it should be settable only with an initial bearer "activation key"
      api_key = models.CharField(max_length=32, null=True)  # type: Text
  
      base_api_url = models.CharField(max_length=128)  # type: Text
      base_site_url = models.CharField(max_length=128)  # type: Text
  
      @property
      def endpoints(self):
          # type: () -> Dict[str, Text]
          return {'base_api_url': self.base_api_url, 'base_site_url': self.base_site_url}
  
      @property
      def name(self):
          # type: () -> Text
  
          # TODO: This only does the right thing for prod because prod authenticates to
          # staging with the zulip.com deployment key, while staging is technically the
          # deployment for the zulip.com realm.
          # This also doesn't necessarily handle other multi-realm deployments correctly
          return self.realms.order_by('pk')[0].domain
  
subject: Add compliance with rule E261 to zilencer/models.py.