iv>
                      <div class="abstract">
                        <p>Transforms any publishers into a Unfailable publisher with the same element type. After calling this method, a publisher will be derived
and it won&rsquo;t emit failures or error. In case the upstream emits an error, a <code>fatalError</code> will be executed, so be careful when using this
operator.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
        