def table_gsis(table_name):
    """ Returns a list of GSIs for the given table

    :type table_name: str
    :param table_name: Name of the DynamoDB table
    :returns: list -- List of GSI names
    """
    try:
        desc = DYNAMODB_CONNECTION.describe_table(table_name)[u'Table']
    except JSONResponseError:
        raise

    if u'GlobalSecondaryIndexes' in desc:
        return desc[u'GlobalSecondaryIndexes']

    return []