= R"(
<root BTCPP_format="4">
<BehaviorTree ID="MainTree">
<Sequence>
<Script code="val_A:= 'john' "/>
<Script code="val_B:= 42 "/>
<SaySomething message="{val_A}" />
<SaySomething message="hello world" />
<SubTree ID="Sub" val="{val_A}" _autoremap="true" />
<SaySomething message="{reply}" />
</Sequence>
</BehaviorTree>
<BehaviorTree ID="Sub">
<Sequence>
<SaySomething message="{val}" />
<SaySomething message="{val_B}" />
<Script code="reply:= 'done' "/>
</Sequence>
</BehaviorTree>
</root>
)"