in o2a/converter/workflow.py [0:0]
def remove_node(self, node_to_delete: OozieNode):
del self.nodes[node_to_delete.name]
for node in self.nodes.values():
if node_to_delete.name in node.downstream_names:
node.downstream_names.remove(node_to_delete.name)
if node.error_downstream_name == node_to_delete.name:
node.error_downstream_name = None