Readonlyfoldablewhether the value solver can fold a call of this built-in to a constant
Readonlynamethe identifier the built-in is registered under, with a replacement's suffix spelled out
Optional Readonlypropsthe CallProp bits the definition states, undefined when it states none
Optional Readonlysigthe declared parameters and what each of their arguments is used for
Optional Readonlytagsthe SemanticCallTags entries the definition states, undefined when it states none
One built-in as the BuiltInIndex sees it: the name it is registered under and what flowR states about it.