map_rule_expressions_from_gtv
Takes a gtv representation of rules, and converts them into a list of rule_expressions
Throws if gtv_rules contains any entry that is not the GTV representation of a rule. Common scenarios are if any element of the list<gtv>:
is not a
listitselfhas components which are not, in this exact order:
an element of
rule_operatoran element of
rule_variablean integer value
Parameters
gtv_rules
the rules that should be deserialized