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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including @io-gui/controls. Try it out:
require("@types/three/package.json"); // @types/three is a peer dependency.
require("three/package.json"); // three is a peer dependency.
var controls = require("@io-gui/controls")
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