You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cldrtree.go
    path of file: ./repos/minicron/client/vendor/golang.org/x/text/internal/cldrtree
    
    the code of the file until where you have to start completion: // Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package cldrtree builds and generates a CLDR index file, including all
// inheritance.
//
package cldrtree

// cldrtree stores CLDR data in a tr
    
func (i *Index) setValue(key, data string, o *options) {
	index, _ := i.meta.typeInfo.lookupSubtype(key, o)
	kv := keyValue{key: index}
	if len(i.values) > 0 {
		// Add string to the same bucket as the other values.
		bucket := i.values[0].value.bucket
		kv.value = i.meta.b.addStringToBucket(data, bucket)
	} else {
		kv.value = i.meta.b.addString(data)
	}
	i.values = append(i.values, kv)
}