def _node_add_without_peer_leaflist(self, node_sum, child_other):
s_node = self.device.get_schema_node(child_other)<EOL>e = deepcopy(child_other)<EOL>scope = node_sum.getchildren()<EOL>siblings = self._get_sequence(scope, child_other.tag, node_sum)<EOL>if s_node.get('<STR_LIT>') == '<STR_LIT:user>' andchild_other.get(insert_tag) is not None:<EOL><INDENT>if child_other.get(insert_tag) == '<STR_LIT>':<EOL><INDENT>if siblings:<EOL><INDENT>siblings[<NUM_LIT:0>].addprevious(self._del_attrib(e))<EOL><DEDENT>else:<EOL><INDENT>node_sum.append(self._del_attrib(e))<EOL><DEDENT><DEDENT>elif child_other.get(insert_tag) == '<STR_LIT>':<EOL><INDENT>if siblings:<EOL><INDENT>siblings[-<NUM_LIT:1>].addnext(self._del_attrib(e))<EOL><DEDENT>else:<EOL><INDENT>node_sum.append(self._del_attrib(e))<EOL><DEDENT><DEDENT>elif child_other.get(insert_tag) == '<STR_LIT>':<EOL><INDENT>if child_other.get(value_tag) is None:<EOL><INDENT>_inserterror('<STR_LIT>', self.device.get_xpath(child_other),<EOL>'<STR_LIT:value>')<EOL><DEDENT>siblings = node_sum.findall(child_other.tag)<EOL>sibling = [s for s in siblings<EOL>if s.text == child_other.get(value_tag)]<EOL>if not sibling:<EOL><INDENT>path = self.device.get_xpath(child_other)<EOL>value = child_other.get(value_tag)<EOL>_inserterror('<STR_LIT>', path, '<STR_LIT:value>', value)<EOL><DEDENT>sibling[<NUM_LIT:0>].addprevious(self._del_attrib(e))<EOL><DEDENT>elif child_other.get(insert_tag) == '<STR_LIT>':<EOL><INDENT>if child_other.get(value_tag) is None:<EOL><INDENT>_inserterror('<STR_LIT>', self.device.get_xpath(child_other),<EOL>'<STR_LIT:value>')<EOL><DEDENT>siblings = node_sum.findall(child_other.tag)<EOL>sibling = [s for s in siblings<EOL>if s.text == child_other.get(value_tag)]<EOL>if not sibling:<EOL><INDENT>path = self.device.get_xpath(child_other)<EOL>value = child_other.get(value_tag)<EOL>_inserterror('<STR_LIT>', path, '<STR_LIT:value>', value)<EOL><DEDENT>sibling[<NUM_LIT:0>].addnext(self._del_attrib(e))<EOL><DEDENT><DEDENT>else:<EOL><INDENT>if siblings:<EOL><INDENT>siblings[-<NUM_LIT:1>].addnext(self._del_attrib(e))<EOL><DEDENT>else:<EOL><INDENT>node_sum.append(self._del_attrib(e))<EOL><DEDENT><DEDENT>
_node_add_without_peer_leaflist

        Low-level api: Apply delta child_other to node_sum when there is no peer
        of child_other can be found under node_sum. child_other is a leaf-list
        node. Element node_sum will be modified during the process.

        Parameters
        ----------

        node_sum : `Element`
            A config node in a config tree.

        child_other : `Element`
            A child of a config node in another config tree. This child has no
            peer under node_sum.

        Returns
        -------

        None
            There is no return of this method.