class_docstr: Resuming from the end step should work
class_docstr_tok: ["Resuming","from","the","end","step","should","work"]
code: def step_start(self):
      self.data = "start"
  
imports: from metaflow_test import MetaflowTest, ExpectationFailed, steps
label_desc: Use image node_id 1 for calling the ResumeEndStepTest obj's underlying member method code with example usage: obj.step_start() without return types