How to use the thingtalk/lib/utils.splitArgsForSchema function in thingtalk

return schemaRetriever.getFullMeta(kind).then((fullMeta) => {
        var channels = fullMeta[channelType];
        var choices = Object.keys(channels);
        if (choices.length === 0) // no channels of this type for this schema, try again
            return chooseInvocation(schemaRetriever, schemas, samplingPolicy, channelType);

        var channelName = uniform(choices);
        channels[channelName].schema = channels[channelName].schema.map((t) => Type.fromString(t));
        var result = ThingTalkUtils.splitArgsForSchema(channels[channelName], channelType, true);
        result.kind = kind;
        result.name = channelName;
        return result;
    });
}