code: def create_snapshot(self, volume_id, description=None):
          
          params = {'VolumeId' : volume_id}
          if description:
              params['Description'] = description[0:255]
          snapshot = self.get_object('CreateSnapshot', params,
                                     Snapshot, verb='POST')
          volume = self.get_all_volumes([volume_id])[0]
          volume_name = volume.tags.get('Name')
          if volume_name:
              snapshot.add_tag('Name', volume_name)
          return snapshot
docs: Create a snapshot of an existing EBS Volume.
  
          :type volume_id: str
          :param volume_id: The ID of the volume to be snapshot'ed
  
          :type description: str
          :param description: A description of the snapshot.
                              Limited to 255 characters.
  
          :rtype: bool
          :return: True if successful