code: def remove_empty_el_from_list(list_):
      return [el for el in list_ if el]
  
imports: import json
  import re
  from collections import Counter
  import fasttext
  import kenlm
  import numpy
  import sentencepiece
  from obelics.utils import SPECIAL_CHARACTERS
label_desc: Use image node_id 4 for calling the FilteringFunctions obj's underlying member method code with example usage: obj.remove_empty_el_from_list(list_) and returns: unknown