code: def line(self, sentences, line_number=None):
          
          if line_number is None:
              line_number = self.current_line + 10
          self.current_line = line_number
  
          sep = []
          result = []
          for sentence in sentences:
              result.extend(sep)
              result.extend(self.sentence_bytes(sentence))
              sep = [ord(':')]
  
          result.extend([ENTER])
          result = self.line_number(line_number) + self.numberLH(len(result)) + result
  
          return result
docs: Return the bytes for a basic line.
          If no line number is given, current one + 10 will be used
          Sentences if a list of sentences