I have created an npm package and when we run it using npx it outputs the result but also give this error before printing output:

ExperimentalWarning: Importing JSON modules is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)

Why this is happening? Tried on different system and OS, even run with --trace-warning:

npx xkeshav --trace-warnings

Note the package has these things in it:

src/index.js:

#!/usr/bin/env node
import boxen from "boxen";
import chalk from "chalk";

const boxenOptions = {
  padding: 1,
  width: 80
};

const intro = chalk.bold(
  "Hi, Keshav Mohta here ????nnI'm a web developer from India.n"
);

const links = [ { some: 'link'} ];

const linkMap = links.map(({name, url}) => `${name} ->  ${chalk.italic(url)}`).join("nn");

const linkList = "nnFind me on the internet:nn" + linkMap;

console.log(boxen(intro + linkList, boxenOptions));

and relevant part of package.json as below:

{
"main": "src/index.js",
  "bin": {
    "xkeshav": "src/index.js"
  },
  "scripts": {
  },
  "files": [
    "**/*.js"
  ],
  "dependencies": {
    "boxen": "^8.0.0"
  },
}