Dynamic Field Labels

dynamic_labels.xml

<group name="custom_questions" >                          
      <label
      for=""
      attrs="{'invisible': [('internal_question_count', '&lt;', 1)]}"
  >
          <field name="internal_question_1_label" nolabel="1" attrs="{'invisible': [('internal_question_count', '&lt;', 1)]}" class="o_form_label" readonly="1"/>
      </label>
      <field
      name="internal_question_1_answer"
      attrs="{'invisible': [('internal_question_count', '&lt;', 1)]}"
      nolabel="1"
  />
</group>
<!--  
label fields are just computed from the name of each m2m of questions, 
count is just the length of those m2ms
yes all those attrs are needed
-->