Four outerbounds blog post

example_nb_flow.py

from metaflow import step, current, FlowSpec, Parameter, card
from mymodel import train_model

class NBFlow(FlowSpec):
    "A toy example of using the notebook card."

    @step
    def start(self):
        # Train a model, save the results in `model_results`
        self.model_results = train_model(...)
        self.next(self.end)

    @card(type='notebook')
    @step
    def end(self):
        # eval_model.ipynb can read `self.model_results`
        self.nb_options_dict = dict(input_path='eval_model.ipynb')

if __name__ == '__main__':
    NBFlow()