code: def process_file(in_filename, out_filename, upgrader):
      """Process a file of type `.py` or `.ipynb`."""
  
      if in_filename.endswith(".py"):
          files_processed, report_text, errors = upgrader.process_file(
              in_filename, out_filename
          )
      elif in_filename.endswith(".ipynb"):
          files_processed, report_text, errors = ipynb.process_file(
              in_filename, out_filename, upgrader
          )
      else:
          raise NotImplementedError(
              "Currently converter only supports python or ipynb"
          )
  
      return files_processed, report_text, errors
  
imports: import argparse
  from tensorflow.tools.compatibility import ast_edits
  from tensorflow.tools.compatibility import ipynb
  from tensorflow.tools.compatibility import tf_upgrade_v2
  from tensorflow.tools.compatibility import tf_upgrade_v2_safety
label_desc: Use image node_id 1 for calling a global function with example usage: process_file(in_filename, out_filename, upgrader) and returns: files_processed,  report_text,  errors