class DataScientist:
    def __init__(self):
        self.name = "Bhupas Gautam"
        self.role = "Data Scientist"
        self.languages_spoken = ["da_DK", "en_US"]
        self.skills = ["Machine Learning", "Data Analysis", "Python"]

class MLEngineer:
    def __init__(self):
        self.name = "Bhupas Gautam"
        self.role = "Machine Learning Engineer"
        self.languages_spoken = ["da_DK", "en_US"]
        self.skills = ["Deep Learning", "Python", "TensorFlow", "PyTorch"]

    def say_hi(self):
        print("Thanks for visiting, I'm dedicated to building and optimizing ML models.")

if __name__ == "__main__":
    data_scientist = DataScientist()
    data_scientist.say_hi()

    ml_engineer = MLEngineer()
    ml_engineer.say_hi()