code: def generate_json_input_file_with_tgt_prefix(
      src_path: str,
      tgt_path: str,
      json_file_with_tgt_prefix_path: str,
      src_factors_path: Optional[List[str]] = None,
      tgt_factors_path: List[str] = None,
      seed=13,
  ):
      random_gen = random.Random(seed)
      with open(src_path, "r") as src_reader, open(
          tgt_path, "r"
      ) as tgt_reader:
          with open(json_file_with_tgt_prefix_path, "w") as out:
              list_src_factors = None
              list_tgt_factors = None
  
              if src_factors_path is not None:
                  list_src_factors = [
                      open(src_factors, "r")
                      for src_factors in src_factors_path
                  ]
                  list_src_factors = [
                      [sf.strip() for sf in src_factors]
                      for src_factors in list_src_factors
                  ]
  
              if tgt_factors_path is not None:
                  list_tgt_factors = [
                      open(tgt_factors, "r")
                      for tgt_factors in tgt_factors_path
                  ]
                  list_tgt_factors = [
                      [tf.strip().split() for tf in tgt_factors]
                      for tgt_factors in list_tgt_factors
                  ]
  
              for i, stdigits in enumerate(zip(src_reader, tgt_reader)):
                  src_digits, tgt_digits = (
                      stdigits[0].strip(),
                      stdigits[1].strip(),
                  )
                  tgt_prefix = tgt_digits.split()
                  if len(tgt_digits) > 0:
                      random_pos = random_gen.choice(
                          [pos for pos in range(len(tgt_prefix))]
                      )
                      tgt_prefix = tgt_prefix[:random_pos]
                  if (
                      tgt_factors_path is not None
                      and len(list_tgt_factors[0][i]) > 0
                  ):
                      # Another random_pos, which is different to the one used for target prefix
                      # With this, target prefix and target factors may have different lengths for testing
                      random_pos = random_gen.choice(
                          [
                              pos
                              for pos in range(
                                  len(list_tgt_factors[0][i])
                              )
                          ]
                      )
                      for k in range(len(list_tgt_factors)):
                          list_tgt_factors[k][i] = list_tgt_factors[k][
                              i
                          ][:random_pos]
                  tgt_prefix = C.TOKEN_SEPARATOR.join(tgt_prefix)
                  if (
                      src_factors_path is None
                      and tgt_factors_path is None
                  ):
                      jsone_line = {
                          "text": src_digits,
                          "target_prefix": tgt_prefix,
                      }
                  elif (
                      src_factors_path is not None
                      and tgt_factors_path is None
                  ):
                      jsone_line = {
                          "text": src_digits,
                          "factors": [
                              src_factors[i]
                              for src_factors in list_src_factors
                          ],
                          "target_prefix": tgt_prefix,
                      }
                  elif (
                      tgt_factors_path is not None
                      and src_factors_path is None
                  ):
                      jsone_line = {
                          "text": src_digits,
                          "target_prefix_factors": [
                              C.TOKEN_SEPARATOR.join(tgt_factors[i])
                              for tgt_factors in list_tgt_factors
                          ],
                          "target_prefix": tgt_prefix,
                      }
                  else:
                      jsone_line = {
                          "text": src_digits,
                          "factors": [
                              src_factors[i]
                              for src_factors in list_src_factors
                          ],
                          "target_prefix_factors": [
                              C.TOKEN_SEPARATOR.join(tgt_factors[i])
                              for tgt_factors in list_tgt_factors
                          ],
                          "target_prefix": tgt_prefix,
                      }
                  print(json.dumps(jsone_line), file=out)
  
imports: import json
  import logging
  import os
  import random
  import sys
  from contextlib import contextmanager
  from tempfile import TemporaryDirectory
  from typing import Any, Dict, List, Optional
  from unittest.mock import patch
  import sockeye.constants
  import sockeye.prepare_data
  import sockeye.train
  import sockeye.translate
  import sockeye.lexicon
  import sockeye.utils
label_desc: Use image node_id 2 for calling a global function with example usage: generate_json_input_file_with_tgt_prefix(src_path, tgt_path, json_file_with_tgt_prefix_path, src_factors_path, tgt_factors_path, seed) without return types