is public

operator

Return type: Switch
Returns:       If the attribute, entity or notation was declared with a public identifier, the return value is true. Otherwise, it returns false. Replacing is with isnt will reverse these results.

Syntax
(entity | notation) (is | isnt) public
OR 
attribute attribute-name (is | isnt) public


Purpose

This operator is used as an entity or a notation test. With a slightly different syntax (noted above) it can be used as an attribute test as well.