(richCalculateSymbol: StringAdd).self
(richCalculateSymbol: StringFormat).self
(richCalculateSymbol: ArrowAssoc[RichCalculateSymbol]).x
(Since version 2.10.0) Use leftOfArrow
instead
(richCalculateSymbol: Ensuring[RichCalculateSymbol]).x
(Since version 2.10.0) Use resultOfEnsuring
instead