guild.yml

train:
  flags-dest: global:config
  flags-import: all

train2:
  flags-dest: namespace:config
  flags-import: all

train.py

config = {"x": 2, "y": 3}


class Trainer:
    def __init__(self, **config):
        self.__dict__.update(config)

    def train(self):
        print("x=%s" % self.x)
        print("y=%s" % self.y)


if __name__ == "__main__":
    trainer = Trainer(**config)
    trainer.train()

train2.py

from types import SimpleNamespace

config = SimpleNamespace(x=2, y=3)

class Trainer:

    def __init__(self, config):
        self.config = config

    def train(self):
        print("x=%s" % self.config.x)
        print("y=%s" % self.config.y)


if __name__ == "__main__":
    trainer = Trainer(config)
    trainer.train()