Groovy. Write objects to file (json) and read them back

HDD.groovy

package utils

import groovy.json.JsonBuilder
import groovy.json.JsonSlurper

class HDD {

    static save(Object content, String filePath) {
        new File(filePath).write(new JsonBuilder(content).toPrettyString())
    }

    static Object load(String filePath) {
        return new JsonSlurper().parseText(new File(filePath).text)
    }
}