class Student:
    def __init__(self, name, grades):
        self.name = name
        self.grades = grades

    def get_average_grade(self):
        avg = sum(self.grades) / len(self.grades)
        return avg

student = Student(
    name='Andris',
    grades=[7, 4, 10],
)

average = student.get_average_grade()
print(average)