code: def sendline(self, data, linesep=os.linesep):
          '''
          Send the provided data to the terminal appending a line feed.
          '''
          return self.send('{0}{1}'.format(data, linesep)f sendline(self, data, linesep=os.linesep):
          '''
          Send the provided data to the terminal appending a line feed.
          '''
          return self.send('{0}{1}'.format(data, linesep))
docs: Send the provided data to the terminal appending a line feed.