When sending an event
wrangler:createChild(name); this series of messages appears in the log
223341178 WARN b507887x1 createAChild Argument mismatch. wrangler:createChild requires 2 arguments, you passed (1)
223341179 ERROR b507887x1 createAChild [action] Argument mismatch. wrangler:createChild requires 2 arguments, you passed (1)
223341181 INFO b507887x1 createAChild Raising explicit event system:error for b507887x1:prod
223341242 INFO b507887x1 createAChild prototype not found
but the Wrangler rule is robust and creates the child Pico anyway. Can I deduce that the second required argument is a "prototype" Pico (whose rulesets would be installed in the new Pico by Wrangler)? How do I get a prototype Pico? Do I create it myself? Do I refer to it by name in the 2nd argument, or by ECI?