import abc

class MachineLearningModel:
    @abc.abstractmethod
    def predict(self, input):
        raise NotImplementedError("Implement your sound!")


class CustomClassifier(MachineLearningModel):
    def predict(self, input):
        print("Cool ML stuff happening...")

b670e15d5519818e504230e99ba7141b820c05af
<mask token>


class CustomClassifier(MachineLearningModel):

    def predict(self, input):
        print('Cool ML stuff happening...')

<mask token>


class MachineLearningModel:
    <mask token>


class CustomClassifier(MachineLearningModel):

    def predict(self, input):
        print('Cool ML stuff happening...')

<mask token>


class MachineLearningModel:

    @abc.abstractmethod
    def predict(self, input):
        raise NotImplementedError('Implement your sound!')


class CustomClassifier(MachineLearningModel):

    def predict(self, input):
        print('Cool ML stuff happening...')

import abc


class MachineLearningModel:

    @abc.abstractmethod
    def predict(self, input):
        raise NotImplementedError('Implement your sound!')


class CustomClassifier(MachineLearningModel):

    def predict(self, input):
        print('Cool ML stuff happening...')

import abc

class MachineLearningModel:
    @abc.abstractmethod
    def predict(self, input):
        raise NotImplementedError("Implement your sound!")


class CustomClassifier(MachineLearningModel):
    def predict(self, input):
        print("Cool ML stuff happening...")
