code: function (type) {
      var meta = findMeta(type);
      var list = joi.array().sparse(false).items(type);
      return joi.alternatives().meta({
        cql: true,
        type: 'list',
        listType: meta.type,
        serialize: convertArray(meta.serialize),
        deserialize: convertArray(meta.deserialize)
      }).try(list, joi.object().keys({
        prepend: list,
        append: list,
        remove: list,
        index: joi.object().pattern(/^\d+$/, type)
      }).or('prepend', 'append', 'remove', 'index').unknown(false));
    }
docs: Create a joi object that can validate a `list` for Cassandra.
  
  @param {Joi} type - used for validating the values in the list
  @returns {Joi} - the validator