old_contents: from twilio.rest.resources import InstanceResource, ListResource
  from twilio.rest.resources.util import normalize_dates, parse_date
  
  
  class Media(InstanceResource):
      """ Represents media associated with a :class:`Message`.
  
      .. attribute:: sid
  
          A 34 character string that uniquely identifies this resource.
  
      .. attribute:: account_sid
  
          The unique id of the Account responsible for this media.
  
      .. attribute:: date_created
  
          The date that this resource was created, given in RFC 2822 format.
  
      .. attribute:: date_updated
  
          The date that this resource was last updated, given in RFC 2822 format.
  
      .. attribute:: parent_sid
  
          The MessageSid of the message that created the media.
  
      .. attribute:: content_type
  
          The default content-type of the media, for example image/jpeg,
          image/png, or image/gif.
  
      .. attribute:: uri
  
          The URI for this resource, relative to https://api.twilio.com
  
      """
  
      def delete(self):
          """
          Delete this media.
          """
          return self.parent.delete_instance(self.name)
  
  
  class MediaList(ListResource):
      name = "Media"
      key = "media"
      instance = Media
  
      def __call__(self, message_sid):
          # `Media` is a word of ambiguous plurality. This causes issues.
          # To match the rest of the library:
          # `client.media` needs to return a new MediaList.
          # `client.media('message_sid')` needs to return a MediaList
          # for a given message.
  
          base_uri = "%s/Messages/%s" % (self.base_uri, message_sid)
          return MediaList(base_uri, self.auth, self.timeout)
  
      def __init__(self, *args, **kwargs):
          super(MediaList, self).__init__(*args, **kwargs)
  
      @normalize_dates
      def list(self, before=None, after=None, date_created=None, **kw):
          """
          Returns a page of :class:`Media` resources as a list. For
          paging information see :class:`ListResource`.
  
          :param date after: Only list media created after this date.
          :param date before: Only list media created before this date.
          :param date date_created: Only list media created on this date.
          :param sid message_sid: Only list media created by the given MessageSid
          """
          kw["DateCreated<"] = before
          kw["DateCreated>"] = after
          kw["DateCreated"] = parse_date(date_created)
          return self.get_instances(kw)
  
      def delete(self, sid):
          """
          Delete a :class:`Media`.
  
          :param sid: String identifier for a Media resource
          """
          return self.delete_instance(sid)
  
new_contents: from twilio.rest.resources import InstanceResource, ListResource
  from twilio.rest.resources.util import normalize_dates, parse_date
  
  
  class Media(InstanceResource):
      """ Represents media associated with a :class:`Message`.
  
      .. attribute:: sid
  
          A 34 character string that uniquely identifies this resource.
  
      .. attribute:: account_sid
  
          The unique id of the Account responsible for this media.
  
      .. attribute:: date_created
  
          The date that this resource was created, given in RFC 2822 format.
  
      .. attribute:: date_updated
  
          The date that this resource was last updated, given in RFC 2822 format.
  
      .. attribute:: parent_sid
  
          The MessageSid of the message that created the media.
  
      .. attribute:: content_type
  
          The default content-type of the media, for example image/jpeg,
          image/png, or image/gif.
  
      .. attribute:: uri
  
          The URI for this resource, relative to https://api.twilio.com
  
      """
  
      def delete(self):
          """
          Delete this media.
          """
          return self.parent.delete_instance(self.name)
  
  
  class MediaList(ListResource):
      name = "Media"
      key = "media_list"
      instance = Media
  
      def __call__(self, message_sid):
          # `Media` is a word of ambiguous plurality. This causes issues.
          # To match the rest of the library:
          # `client.media` needs to return a new MediaList.
          # `client.media('message_sid')` needs to return a MediaList
          # for a given message.
  
          base_uri = "%s/Messages/%s" % (self.base_uri, message_sid)
          return MediaList(base_uri, self.auth, self.timeout)
  
      def __init__(self, *args, **kwargs):
          super(MediaList, self).__init__(*args, **kwargs)
  
      @normalize_dates
      def list(self, before=None, after=None, date_created=None, **kw):
          """
          Returns a page of :class:`Media` resources as a list. For
          paging information see :class:`ListResource`.
  
          :param date after: Only list media created after this date.
          :param date before: Only list media created before this date.
          :param date date_created: Only list media created on this date.
          :param sid message_sid: Only list media created by the given MessageSid
          """
          kw["DateCreated<"] = before
          kw["DateCreated>"] = after
          kw["DateCreated"] = parse_date(date_created)
          return self.get_instances(kw)
  
      def delete(self, sid):
          """
          Delete a :class:`Media`.
  
          :param sid: String identifier for a Media resource
          """
          return self.delete_instance(sid)
  
subject: change media list key to 'media_list'