load mobilenet model

loadmobilenet.js

      const loadedModel = await tf.loadModel('https://storage.googleapis.com/tfjs-models/tfjs/mobilenet_v1_0.25_224/model.json')
      // take whatever layer except last output
      loadedModel.layers.forEach(layer => console.log(layer.name))
      const layer = loadedModel.getLayer('conv_pw_13_relu')
      return tf.model({ inputs: loadedModel.inputs, outputs: layer.output });