code: def remove_empty_lines(str):
      return "\n".join(
          [line.rstrip() for line in str.split("\n") if line.rstrip()]
      )
  
imports: import copy
  import functools
  import os
  import random
  import subprocess
  import weakref
  from collections import OrderedDict
  from collections.abc import Mapping
  from typing import Any, Dict, TYPE_CHECKING
  import numpy
  import torch
  from ludwig.api_annotations import DeveloperAPI
  from ludwig.constants import PROC_COLUMN
  from ludwig.globals import DESCRIPTION_FILE_NAME
  from ludwig.utils import fs_utils
  from ludwig.utils.fs_utils import find_non_existing_dir_by_adding_suffix
label_desc: Use image node_id 14 for calling a global function with example usage: remove_empty_lines(str) and returns: str