h><th>Optional</th>
<th>Attributes</th><th></th><th>Name</th><th></th></thead>



<tbody>

  
  
  
  
<tr>
  
  <td><span class="anchor" ></span>integer(kind=i32)</td>
  <td></td>
  <td></td>
  
  <td></td><td>::</td>
  <td><strong>month</strong></td><td><p>How many days in this month</p></td>
  
</tr>

  
  
  
  
<tr>
  
  <td><span class="anchor" ></span>integer(kind=i32),</td>
  <td></td>
  <td>optional</td>
  
  <td></td><td>::</td>
  <td><strong>year</strong></td><td><p>Check if a leap year?</p></td>