@Test
    public void testJsonQueryWithBoundInput() {
        assertThat(pgExtension.getSharedHandle()
                .createQuery("SELECT '{\"a\":1, \"b\":2}'::jsonb ?? :key")
                .bind("key", "a")
                .mapTo(boolean.class)
                .one())
                .isTrue();
    }
Examples from <a href="https://www.postgresql.org/docs/current/static/functions-json.html">Postgres JSON Functions</a>. Escaping rules from <a
href="https://jdbc.postgresql.org/documentation/head/statement.html">Postgres Prepared Statements</a>.
postgres/src/test/java/org/jdbi/v3/postgres/TestJsonOperator.java