Returns a comma-separated list of attributes that can be set for an object or widget.
A handle to a valid object or widget. The function returns a list of the attributes that can be set for that object or widget.
For an example of the LIST-SET-ATTRS function, see the
LIST-QUERY-ATTRS function reference entry.
When used with the SECURITY-POLICY handle, this function does not return the XCODE-SESSION-KEY writeable attribute because this attribute contains an encryption key for encrypted source code.