r return values
correspond to higher priority. Priorities above 2^63-1 are reserved.
If your <a class="reference external" href="reference-Plugins.html#plugin">plugin</a> has no priority to assign a peer it should return 2^64-1.
If your <a class="reference external" href="reference-Plugins.html#plugin">plugin</a> expects this to be called, make sure to include the flag
<tt class="docutils literal">optimistic_unchoke_feature</tt> in the return value from <a class="reference external" href="reference-Plugins.