code: def _split_explanation(explanation):
      
      raw_lines = (explanation or u('')).split('\n')
      lines = [raw_lines[0]]
      for l in raw_lines[1:]:
          if l and l[0] in ['{', '}', '~', '>']:
              lines.append(l)
          else:
              lines[-1] += '\\n' + l
      return lines
docs: Return a list of individual lines in the explanation
  
      This will return a list of lines split on '\n{', '\n}' and '\n~'.
      Any other newlines will be escaped and appear in the line as the
      literal '\n' characters.