如何在Groovy中扁平化和拆分这个JSON？

import groovy.json.JsonSlurper

def jsonSlurper = new JsonSlurper()
def json = jsonSlurper.parseText(jsonString)

def flattenJson = [:]

def flatten(json, prefix = '') {
    json.each { key, value ->
        def newKey = prefix ? "${prefix}.${key}" : key
        if (value instanceof Map) {
            flatten(value, newKey)
        } else {
            flattenJson[newKey] = value
        }
    }
}

flatten(json)

def unflattenJson = [:]

def unflatten(key, value) {
    def parts = key.split('\\.')
    def current = unflattenJson

    parts.eachWithIndex { part, index ->
        if (index == parts.size() - 1) {
            current[part] = value
        } else {
            if (!current.containsKey(part)) {
                current[part] = [:]
            }
            current = current[part]
        }
    }
}

flattenJson.each { key, value ->
    unflatten(key, value)
}