code: def update_model(state, grads):
      return state.apply_gradients(grads=grads)
  
imports: from absl import app
  from absl import flags
  import os
  import time
  from flax import linen
  from flax.training import train_state
  import jax
  from jax import lax
  from jax import numpy
  import optax
  import numpy
  import tensorflow
  import tensorflowjs
  import input_pipeline
label_desc: Use image node_id 2 for calling a global function with example usage: update_model(state, grads) and returns: state