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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def create_zone(domain, profile, type='master', ttl=None):
    '''
    Create a new zone.

    :param domain: Zone domain name (e.g. example.com)
    :type domain: ``str``

    :param profile: The profile key
    :type  profile: ``str``

    :param type: Zone type (master / slave).
    :type  type: ``str``

    :param ttl: TTL for new records. (optional)
    :type  ttl: ``int``

    CLI Example:

    .. code-block:: bash

        salt myminion libcloud_dns.create_zone google.com profile1
    '''
    conn = _get_driver(profile=profile)
    zone = conn.create_record(domain, type=type, ttl=ttl)
    return _simple_zone(zone)