class_docstr: A flow where Metaflow prints 'Hi'.
  
  Run this flow to validate that Metaflow is installed correctly.
class_docstr_tok: ["A","flow","where","Metaflow","prints","'Hi","'",".","Run","this","flow","to","validate","that","Metaflow","is","installed","correctly","."]
docstr: A step for metaflow to introduce itself.
docstr_tok: ["A","step","for","metaflow","to","introduce","itself","."]
code: def hello(self):
      """
      A step for metaflow to introduce itself.
  
      """
      print("Metaflow says: Hi!")
      self.next(self.end)
  
imports: from metaflow import FlowSpec, step
label_desc: Use image node_id 2 for calling the HelloFlow obj's underlying member method code with example usage: obj.hello() without return types