Answer:
class Phone(object):
def __init__(self, features, phones=[]):
self.features = features
self.phones = phones
Explanation:
In python object-oriented programming, an instance variable of a class object is created in the "__init__()" method. the "self" is a convention name used to represent the instance of an object class. The input values are assigned to the object variable with the self.'argument_name' statement.
When the phone argument is not given, the self.phones variable is initialized as an empty list.
