code: def format_single_space_only(text):
      
      return " ".join([word for word in text.strip().split(" ") if len(word) >= 1])
docs: Revise consecutive empty space to single space.
  
      Example::
  
          " I   feel    so  GOOD!" => "This is so GOOD!"
  
      **中文文档**
  
      确保文本中不会出现多余连续1次的空格。