def generate_index(self):
<EOL>class Kind(model.Model):<EOL><INDENT>property1 = model.TextProperty()<EOL>property2 = model.TextProperty()<EOL><DEDENT>qry = query.gql('<STR_LIT>')<EOL>qry.fetch()<EOL>
Run a query to trigger index generation.

        Note, index generation is idempotent. Running same query multiple times does
        not change existing index. Hence we don't need to clear indexes between
        tests.