const imports = {
    guppy: {
        print: (arg) => console.log (arg)
    }
}

// Assume add.wasm file exists that contains a single function adding 2 provided arguments
const fs = require('node:fs');

// Use the readFileSync function to read the contents of the "add.wasm" file
const wasmBuffer = fs.readFileSync('u.wasm');

// Use the WebAssembly.instantiate method to instantiate the WebAssembly module
WebAssembly.instantiate(wasmBuffer, imports).then(wasmModule => {
    // Exported function lives under instance.exports object
    const { main } = wasmModule.instance.exports;
    main ()
});