      <span class='type'>(<tt>Eth::Key</tt>)</span>
      
      
      
        &mdash;
        <div class='inline'>
<p>The key to sign the Staking Operation transactions with</p>
</div>
      
    </li>
  
    <li>
      
        <span class='name'>interval_seconds</span>
      
      
        <span class='type'>(<tt>Integer</tt>)</span>
      
      
        <em class="default">(defaults to: <tt>5</tt>)</em>
      
      
        &mdash;
        <div class='inline'>
<p>The interval at which to poll, in s