code: def __call__(self, x):
      x = nn.Conv(features=16, kernel_size=(3, 3), padding="SAME")(x)
      x = nn.relu(x)
      x = nn.max_pool(x, window_shape=(2, 2), strides=(2, 2))
  
      x = nn.Conv(features=32, kernel_size=(3, 3), padding="SAME")(x)
      x = nn.relu(x)
      x = nn.max_pool(x, window_shape=(2, 2), strides=(2, 2))
  
      x = nn.Conv(features=64, kernel_size=(3, 3), padding="SAME")(x)
      x = nn.relu(x)
      x = nn.max_pool(x, window_shape=(2, 2), strides=(2, 2))
  
      x = x.reshape((x.shape[0], -1))  # flatten
      x = nn.Dense(features=128)(x)
      x = nn.relu(x)
  
      x = nn.Dense(features=_NUM_CLASSES.value)(x)
  
      return x
  
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 1 for calling the QuickDraw obj's underlying member method code with example usage: obj.__call__(x) and returns: x