.and()Combines the previous and the next expressions with an and logical operator.
pbQuery<User>().equal('name', 'Alice').and().equal('role', 'admin'); // name='Alice' && role='admin'
.or()Combines the previous and the next expressions with an or logical operator.
pbQuery<User>().equal('name', 'Alice').or().equal('name', 'Bob'); // name='Alice' || name='Bob'