I imagined what an Elasticsearch query style Python XML syntax would look like.You must share my pain.
<fun> <name>sum</name> <in> <int> <name>foo</name> </int> <int> <name>bar</name> <default_value> <int>0</int> </default_value> </int> </in> <out> <int> <calculation> <numerical_operation> <operator_plus> <operand> <var>foo</var> </operand> <operand> <var>bar</var> </operand> </operator_plus> </numerical_operation> </calculation> </int> </out> </fun>
That's not a kid, that's a small bureaucrat.