def id_to_name(config, short_name):
    """
    Returns the provider :doc:`config` key based on it's ``id`` value.

    :param dict config:
        :doc:`config`.
    :param id:
        Value of the id parameter in the :ref:`config` to search for.

    """

    for k, v in list(config.items()):
        if v.get('id') == short_name:
            return k

    raise Exception(
        'No provider with id={0} found in the config!'.format(short_name))