readme.md

• https://github.com/milessabin/shapeless/blob/v2.3.10/core/src/main/scala/shapeless/syntax/std/tuples.scala#L201-L211
• https://github.com/milessabin/shapeless/blob/v2.3.10/core/src/test/scala/shapeless/tuples.scala#L1899
• https://twitter.com/Chen__TS/status/1754358383204069484

build.sbt

scalaVersion := "2.13.12"

libraryDependencies += "com.chuusai" %% "shapeless" % "2.3.10"

MapTupleN.scala

package example

import shapeless.nat._
import shapeless.syntax.std.tuple._

object Main{
  def main(args: Array[String]): Unit = {
    val t = (2, false, "a")
    val x = t.updateAtWith(2)(a => a :: Nil)._2
    println(x)
    assert(x == (2, false, "a" :: Nil))
  }
}