Specifies whether this method definition is internal (not displayed in the class documentation).
To specify that this method is internal, use the following syntax:
Method name(formal_spec) As returnclass [ Internal ]
Otherwise, omit this keyword or place the word Not
immediately before the keyword.
class members are not displayed in the class documentation. This keyword is useful if you want users to see a class but not see all its members.
If you omit this keyword, this method is displayed in the class documentation.