docs: def ssh_client(host, username=None, password=None, **kwargs):
      """
      Create a new :class:`paramiko.SSHClient`, connect it and return the
      instance.
  
      This is a simple wrapper around the connect method that add some good
      defaults when using username/password to connect.
      """
      client = paramiko.SSHClient()
      # save hostname and username on the instance - this is a ugly hack
      # but I don't see any other way to do that for now. Note that
      # this is only used for SshSession.__str__.
      client.hostname = host
      client.username = username
      if username is not None:
          kwargs['username'] = username
      if password is not None:
          kwargs['password'] = password
      if username is not None and password is not None:
          client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
          kwargs.setdefault('look_for_keys', False)
      client.connect(host, **kwargs)
      return client