class_docstr: Test flow to test @parallel.
class_docstr_tok: ["Test","flow","to","test","@","parallel","."]
code: def multinode_end(self, inputs):
      j = 0
      for input in inputs:
          assert input.node_index == j
          assert input.num_nodes == self.num_parallel
          j += 1
      assert j == self.num_parallel
      self.next(self.end)
  
imports: from metaflow import FlowSpec, step, batch, current, parallel, Parameter
label_desc: Use image node_id 3 for calling the ParallelTest obj's underlying member method code with example usage: obj.multinode_end(inputs) without return types