Returns the type, id and option of a configuration object.

def _get_type_id_options(name, configuration):
    '''
    Returns the type, id and option of a configuration object.
    '''
    # it's in a form of source.name
    if '.' in name:
        type_, sep, id_ = name.partition('.')
        options = configuration
    else:
        type_ = next(six.iterkeys(configuration))
        id_ = name
        options = configuration[type_]

    return type_, id_, options