'Sets the Node\'s root password.
This will reboot the instance to complete the operation.
:class:`Node.extra[\'password\']` will be set to the new value if the
operation was successful.
:param      node: node to set password
:type       node: :class:`Node`
:param      password: new password.
:type       password: ``str``
:rtype: ``bool``'

def ex_set_password(self, node, password):

    return self._change_password_or_name(node, password=password)
