Kotlin code to compress/uncompress a string with gzip

gzip.kts

import java.io.ByteArrayOutputStream
import java.io.File
import java.nio.charset.StandardCharsets.UTF_8
import java.util.zip.GZIPInputStream
import java.util.zip.GZIPOutputStream

fun gzip(content: String): ByteArray {
    val bos = ByteArrayOutputStream()
    GZIPOutputStream(bos).bufferedWriter(UTF_8).use { it.write(content) }
    return bos.toByteArray()
}

fun ungzip(content: ByteArray): String =
        GZIPInputStream(content.inputStream()).bufferedReader(UTF_8).use { it.readText() }

//val content = "a string with some content"
val file = File("gzip.kts")
val content = file.readText()

println("size of original: ${content.length}")
val zipped = gzip(content)
println("size zipped: ${zipped.size}")
val unzipped = ungzip(zipped)
println("size unzipped: ${unzipped.length}")
assert(unzipped == content)

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