How to use the parse-server/lib/Adapters/Storage/Mongo/MongoTransform.transformUpdate function in parse-server

findOneAndUpdate(className, schema, query, update, upsert = false) : Promise {
        update = this.transformDateObject(update);
        schema = Transform.convertParseSchemaToMongoSchema(schema);
        update = Transform.transformUpdate(className, update, schema);
        update = this.transformDateObject(update);
        query = this.transformDateObject(query);
        query = Transform.transformWhere(className, query, schema);
        query = this.transformDateObject(query);

        return this._adaptiveCollection(className).ensureUniqueness(update['$set'])
            .then(count => {
                if (count === 0) {
                    return this._adaptiveCollection(className).updateOne(query, update, upsert);
                } else {
                    throw new Parse.Error(Parse.Error.DUPLICATE_VALUE, 'A duplicate value for a field with unique values was provided');
                }
            })
            .then(result => Transform.transformToParseObject(className, result.value, schema))
            .catch(
                error => { throw error }

updateObjectsByQuery(className, schema, query, update) : Promise {
        update = this.transformDateObject(update);
        schema = Transform.convertParseSchemaToMongoSchema(schema);
        update = Transform.transformUpdate(className, update, schema);
        update = this.transformDateObject(update);
        query = this.transformDateObject(query);
        query = Transform.transformWhere(className, query, schema);
        query = this.transformDateObject(query);

        return this._adaptiveCollection(className).ensureUniqueness(update['$set'])
            .then(count => {
                if (count === 0) {
                    return this._adaptiveCollection(className).updateMany(query, update);
                } else {
                    throw new Parse.Error(Parse.Error.DUPLICATE_VALUE, 'A duplicate value for a field with unique values was provided');
                }
            })
            .catch(
                error => { throw error }
            );