Resolve incomplete documentation for Responsys
Refine the Responsys documentation to include all built-ins (e.g.
?is_directive), as some are currently missing.
?string are included in the documentation but only regarding converting a type into the default string type.
?string in its current state in Responsys also supports the following logic, similar to a ternary:
These additional syntaxes would be very important and helpful to include in the documentation.