nc' id='my_model_id_func_42'>
  id from `id()` function
</div>
<div class='my_model_id_func' id='my_model_id_func_42' a='1'>
  with Ruby param
</div>
<div class='my_model_id_func' id='my_model_id_func_42' b='2'>
  with Html param
</div>
<div class='my_model_id_func' id='my_model_id_func_42' b='2' a='1'>
  with Ruby and Html param
</div>
<div class='my_model_id_func' id='my_model_id_func_42' b='2' a='1'>
  with Ruby and Html param
</div>
<div class='custom' id='custom_1'>
  with specific haml object referenc