erable</span><span class="p"><span class="pre">[</span></span><a class="reference internal" href="../../script_building/dag.html#systemds.script_building.dag.DAGNode" title="systemds.script_building.dag.DAGNode"><span class="pre">DAGNode</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">str</span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><span class="pre">int</span><span class="w