new_contents: # This code is part of Ansible, but is an independent component.
  # This particular file snippet, and this file snippet only, is BSD licensed.
  # Modules you write using this snippet, which is embedded dynamically by
  # Ansible still belong to the author of the module, and may assign their own
  # license to the complete work.
  #
  # Copyright (C) 2018 Lenovo, Inc.
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #
  #  * Redistributions of source code must retain the above copyright
  #    notice, this list of conditions and the following disclaimer.
  #  * Redistributions in binary form must reproduce the above copyright notice,
  #    this list of conditions and the following disclaimer in the documentation
  #    and/or other materials provided with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  # POSSIBILITY OF SUCH DAMAGE.
  #
  # Contains Terminal Plugin methods for ENOS Modules
  # Lenovo Networking
  #
  from __future__ import (absolute_import, division, print_function)
  __metaclass__ = type
  
  import json
  import re
  
  from ansible.errors import AnsibleConnectionFailure
  from ansible.module_utils._text import to_text, to_bytes
  from ansible.plugins.terminal import TerminalBase
  
  
  class TerminalModule(TerminalBase):
  
      terminal_stdout_re = [
          re.compile(br"[\r\n]?[\w+\-\.:\/\[\]]+(?:\([^\)]+\)){,3}(?:>|#) ?$"),
          re.compile(br"\[\w+\@[\w\-\.]+(?: [^\]])\] ?[>#\$] ?$"),
          re.compile(br">[\r\n]?")
      ]
  
      terminal_stderr_re = [
          re.compile(br"% ?Error"),
          re.compile(br"% ?Bad secret"),
          re.compile(br"invalid input", re.I),
          re.compile(br"(?:incomplete|ambiguous) command", re.I),
          re.compile(br"connection timed out", re.I),
          re.compile(br"[^\r\n]+ not found"),
          re.compile(br"'[^']' +returned error code: ?\d+"),
      ]
  
      def on_open_shell(self):
          try:
              for cmd in (b'\n', b'terminal-length 0\n'):
                  self._exec_cli_command(cmd)
          except AnsibleConnectionFailure:
              raise AnsibleConnectionFailure('unable to set terminal parameters')
  
      def on_authorize(self, passwd=None):
          if self._get_prompt().endswith(b'#'):
              return
  
          cmd = {u'command': u'enable'}
          if passwd:
              # Note: python-3.5 cannot combine u"" and r"" together.  Thus make
              # an r string and use to_text to ensure it's text
              # on both py2 and py3.
              cmd[u'prompt'] = to_text(r"[\r\n]?password: $",
                                       errors='surrogate_or_strict')
              cmd[u'answer'] = passwd
  
          try:
              self._exec_cli_command(to_bytes(json.dumps(cmd),
                                     errors='surrogate_or_strict'))
          except AnsibleConnectionFailure:
              msg = 'unable to elevate privilege to enable mode'
              raise AnsibleConnectionFailure(msg)
  
      def on_deauthorize(self):
          prompt = self._get_prompt()
          if prompt is None:
              # if prompt is None most likely the terminal is hung up at a prompt
              return
  
          if b'(config' in prompt:
              self._exec_cli_command(b'end')
              self._exec_cli_command(b'disable')
  
          elif prompt.endswith(b'#'):
              self._exec_cli_command(b'disable')
  
subject: create terminal plugin for enos modules (#31510)