class ContactModel:
    def __init__(self, data):
        self.first_name = data.get('first_name')
        self.last_name = data.get('last_name')
        self.email = data.get('email')
        self.phonenumber = data.get('phone_number')
        self.linkedin = data.get('linkedin')
        self.git = data.get('git')
        self.web = data.get('web')


    def is_valid(self):
        return self.first_name is not None and self.last_name is not None and self.email is not None and self.phonenumber is not None

    def to_dict(self):
        return {
            "first_name": self.first_name,
            "last_name": self.last_name,
            "email": self.email,
            "phone_number": self.phonenumber,
            "linkedin": self.linkedin,
            "git": self.git,
            "web": self.web,
        }