= R"(
<root BTCPP_format="4">
<BehaviorTree ID="MainTree">
<Sequence>
<SaySomething name="talk" message="hello world"/>
<SubTree ID="MySub" name="mysub"/>
<Script name="set_message" code="msg:= 'the original message' "/>
<SaySomething message="{msg}"/>
<Sequence name="counting">
<SaySomething message="1"/>
<SaySomething message="2"/>
<SaySomething message="3"/>
</Sequence>
</Sequence>
</BehaviorTree>
<BehaviorTree ID="MySub">
<Sequence>
<AlwaysSuccess name="action_subA"/>
<AlwaysSuccess name="action_subB"/>
</Sequence>
</BehaviorTree>
</root>
)"