docs: def describe_snapshots(kwargs=None, call=None):
      '''
      Describe a snapshot (or snapshots)
  
      snapshot_id
          One or more snapshot IDs. Multiple IDs must be separated by ",".
  
      owner
          Return the snapshots owned by the specified owner. Valid values
          include: self, amazon, <AWS Account ID>. Multiple values must be
          separated by ",".
  
      restorable_by
          One or more AWS accounts IDs that can create volumes from the snapshot.
          Multiple aws account IDs must be separated by ",".
  
      TODO: Add all of the filters.
      '''
      if call != 'function':
          log.error(
              'The describe_snapshot function must be called with -f '
              'or --function.'
          )
          return False
  
      params = {'Action': 'DescribeSnapshots'}
  
      # The AWS correct way is to use non-plurals like snapshot_id INSTEAD of snapshot_ids.
      if 'snapshot_ids' in kwargs:
          kwargs['snapshot_id'] = kwargs['snapshot_ids']
  
      if 'snapshot_id' in kwargs:
          snapshot_ids = kwargs['snapshot_id'].split(',')
          for snapshot_index, snapshot_id in enumerate(snapshot_ids):
              params['SnapshotId.{0}'.format(snapshot_index)] = snapshot_id
  
      if 'owner' in kwargs:
          owners = kwargs['owner'].split(',')
          for owner_index, owner in enumerate(owners):
              params['Owner.{0}'.format(owner_index)] = owner
  
      if 'restorable_by' in kwargs:
          restorable_bys = kwargs['restorable_by'].split(',')
          for restorable_by_index, restorable_by in enumerate(restorable_bys):
              params[
                  'RestorableBy.{0}'.format(restorable_by_index)
              ] = restorable_by
  
      log.debug(params)
  
      data = aws.query(params,
                       return_url=True,
                       location=get_location(),
                       provider=get_provider(),
                       opts=__opts__,
                       sigver='4')
      return data