t swift"><code><span class="kd">public</span> <span class="kd">struct</span> <span class="kt">SubscriberType</span><span class="o">&lt;</span><span class="kt">Element</span><span class="p">,</span> <span class="kt">ErrorType</span><span class="o">&gt;</span> <span class="k">where</span> <span class="kt">ErrorType</span> <span class="p">:</span> <span class="kt">Error</span></code></pre>

                </div>
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            <p>Abstraction over subscriber/observer types from reactive frame