code: def _generate_unique_integer_id():
      """Utility function for generating a random fixed-length integer
  
      Args:
          id_length: The target length of the string representation of the integer without
              leading zeros
  
      Returns:
          a fixed-width integer
      """
  
      random_int = uuid.uuid4().int
      # Cast to string to get a fixed length
      random_str = str(random_int)[-_EXPERIMENT_ID_FIXED_WIDTH:]
      # append a random int as string to the end of the generated string for as many
      # leading zeros exist in the generated string in order to preserve the total length
      # once cast back to int
      for s in random_str:
          if s == "0":
              random_str = random_str + str(random.randint(0, 9))
          else:
              break
      return int(random_str)
  
imports: import random
  import uuid
label_desc: Use image node_id 1 for calling a global function with example usage: _generate_unique_integer_id() and returns: int