code: def validate_parent_exists(file_path):
      """Validates parent directory exists in case the file_path is not None"""
      if file_path is not None and file_path:
          io.validate_parent_exists(fix_path(file_path))
  
imports: from __future__ import print_function
  import argparse
  import os
  import random
  import sys
  import numpy
  import tensorflow
  from nlp_architect.utils import io
  from .None import inference
  from .None import train
  from .gnmt.utils import misc_utils, vocab_utils, evaluation_utils
label_desc: Use image node_id 6 for calling a global function with example usage: validate_parent_exists(file_path) without return types