code: def test_prettify_datetime(self):
      my_test_datetime = datetime.datetime(2018, 1, 1)
      result = prettify_datetime(my_test_datetime)
      # Ensure there is a result in the local timezone
      assert result
      tz = timezone("US/Eastern")
      result = prettify_datetime(my_test_datetime, tz=tz)
      assert result == "Sun Dec 31 19:00:00 2017 -0500"
  
imports: import os
  import time
  import tempfile
  import platform
  import datetime
  from pytz import timezone
  from io import open
  from datmo.core.util.misc_functions import bytes2human, create_unique_hash, mutually_exclusive, is_project_dir, find_project_dir, grep, prettify_datetime, format_table, parse_cli_key_value, convert_keys_to_string, get_datmo_temp_path, parse_path, parse_paths, list_all_filepaths
  from datmo.core.util.exceptions import MutuallyExclusiveArguments, RequiredArgumentMissing, InvalidDestinationName, PathDoesNotExist, TooManyArgumentsFound
label_desc: Use image node_id 9 for calling the TestMiscFunctions obj's underlying member method code with example usage: obj.test_prettify_datetime() without return types