OpenCV/opencv/doc/js_tutorials/js_assets/webnn-electron/node_setup.js

const cv = require('./opencv');
const webnn = require(process.env.WEBNN_NATIVE_DIR+'/../../node/lib/webnn');
// navigator is undefined in node.js, but defined in electron.js.
if (global.navigator === undefined) {
  global.navigator = {};
}
global.navigator.ml = webnn.ml;
global.MLContext = webnn.MLContext
global.MLGraphBuilder = webnn.MLGraphBuilder
global.MLGraph = webnn.MLGraph
global.MLOperand = webnn.MLOperand
global.cv = cv;