#PLEASE DO NOT EDIT THIS CODE
#This code was generated using the UMPLE 1.38.0.8942.247e17422 modeling language!


class Mentor:
    def __init__(self, aName, *allStudents):
        self._name = aName
        self._students = []
        if not self.setStudents(*allStudents):
            raise RuntimeError("Unable to create Mentor, must have 4 students. See https://manual.umple.org?RE002ViolationofAssociationMultiplicity.html")

    def setName(self, aName):
        self._name = aName
        return True

    def getName(self):
        return self._name

    def getStudent(self, index):
        return self._students[index]

    def getStudents(self):
        return tuple(self._students)

    def numberOfStudents(self):
        return len(self._students)

    def hasStudents(self):
        return len(self._students) > 0

    def indexOfStudent(self, aStudent):
        return next((i for i, x in enumerate(self._students) if x is aStudent), -1)

    @staticmethod
    def requiredNumberOfStudents():
        return 4

    @staticmethod
    def minimumNumberOfStudents():
        return 4

    @staticmethod
    def maximumNumberOfStudents():
        return 4

    def setStudents(self, *newStudents):
        if len({id(aStudent) for aStudent in newStudents}) != len(newStudents):
            return False
        if len(newStudents) != __class__.requiredNumberOfStudents():
            return False
        self._students = list(newStudents)
        return True

    def delete(self):
        self._students.clear()

    def __str__(self):
        return (super().__str__() + "["
                + "name:" + str(self.getName())
                + "]")

#PLEASE DO NOT EDIT THIS CODE
#This code was generated using the UMPLE 1.38.0.8942.247e17422 modeling language!


class Student:
    def __init__(self, aNumber):
        self._number = aNumber

    def setNumber(self, aNumber):
        self._number = aNumber
        return True

    def getNumber(self):
        return self._number

    def delete(self):
        pass

    def __str__(self):
        return (super().__str__() + "["
                + "number:" + str(self.getNumber())
                + "]")