Copy person

        :param person: Person to copy into new instance
        :type person: Person
        :rtype: Person

def from_person(person):
        """
        Copy person

        :param person: Person to copy into new instance
        :type person: Person
        :rtype: Person
        """
        p = Person()
        p.id = person.id
        p.sitting = person.sitting
        return p