docs: def __remove_leading_empty_lines(lines):
          """
          Removes leading empty lines from a list of lines.
  
          :param list[str] lines: The lines.
          """
          tmp = list()
          empty = True
          for i in range(0, len(lines)):
              empty = empty and lines[i] == ''
              if not empty:
                  tmp.append(lines[i])
  
          return tmp