code: def _build_ssh_command(conn_info, no_tunnel=False):
      
      command = ['ssh', '-i', conn_info['ssh_key_path'], conn_info['conn']]
  
      if conn_info.get('tunnel') and not no_tunnel:
          command.insert(1, conn_info.get('tunnel'))
          # Tunnel
          command.insert(1, '-L')
          # No shell
          command.insert(1, '-N')
      if conn_info.get('proxy'):
          command.extend(_build_proxy_command(conn_info))
      if conn_info.get('extend'):
          command.append(conn_info.get('extend'))
      return command
docs: # TODO: Document clearly
      IndetityFile="~/.ssh/id_rsa"
      ProxyCommand="ssh -i ~/.ssh/id_rsa proxy_IP nc HOST_IP HOST_PORT"