class_docstr: Main model class.
class_docstr_tok: ["Main","model","class","."]
code: def predict_step(self, x):
      raise NotImplementedError("Prediction API is not supported.")
  
imports: import argparse
  import glob
  import sys
  from absl import app
  from absl.flags import argparse_flags
  import tensorflow
  import tensorflow_compression
  import tensorflow_datasets
label_desc: Use image node_id 5 for calling the BLS2017Model obj's underlying member method code with example usage: obj.predict_step(x) without return types