class MNISTModel:
    def __init__(self):
        pass
    def train_model(self):
        """
        some notes
        """
        pass
    def evaluate_model(self
        """
        more notes
        """
        pass

class MNISTModel:
    def __init__(self):
        pass
    def train_model(self):
        """
        some notes
        """
        pass
    def evaluate_model(self
        """
        more notes
        """
        pass

some notes more notes