'''
Create a customer class
Add a constructor with parameters first, last, and phone_number
Create public attributes for first, last, and phone_number

STUDENT MUST ALSO MODIFY INVOICE CLASS TO USE THIS CLASS
SEE INVOICE file FOR INSTRUCTIONS
'''
class Customer:

    def __init__(self, first_name, last_name, phone_number):

        self.first_name = first_name
        self.last_name = last_name
        self.phone_number = phone_number
