Tags and keywords
The Doc` function
makeArgRuleReq
creates a help Rule for a required argument with keys compatible for:
Please note that at this stage we are only examining use of the Webel '$arg$' help holders conventions in lower-level packages, which rely on "manual" naming conventions; in later slides we'll see how Webel extensions of MTools for OO such as the MArg class can be used to encapsulate the help holders for the Webel arguments convention.