readme: ```
  const tf = require('@tensorflow/tfjs');
  const tfnode = require('@tensorflow/tfjs-node');
  
  async function loadModel(){
      const handler = tfnode.io.fileSystem('checkpoint/model.json');
      const model = await tf.loadGraphModel(handler);
      console.log("Model loaded")
  
      const zeros = tf.randomNormal([8, 3, 224, 224]);
      const out = model.predict(zeros);
      console.log(out);
      out.print();
  }
  
  loadModel();
  
  ```
  
  