service Getter("test"): createStr: u32 -> string service OpO("op"): identity: string -> string -- a question mark means that this constant could be rewritten before this definition const anotherConst ?= "default-str" const uniqueConst ?= 5 func callConstant() -> []string, u8: res: *string res <- Getter.createStr(uniqueConst) res <- OpO.identity(anotherConst) <- res, 5