old_contents: from sqlalchemy import column, Integer, String
  from sqlalchemy import Model, DateTime
  
  class Person(Model):
      id = column(Integer, primary_key=True)
      username = column(String)
      email = column(String)
      phone = column(String)
  
  class Item(Model):
      id = column(Integer, primary_key=True)
      name = column(String)
      description = column(String)
  
  class History(Model):
      id = column(Integer, primary_key=True)
      # Insert foreign keys here
  
  class CheckedOut(Model):
      id = column(Integer, primary_key=True)
      checkout_date = column(DateTime)
      # Insert foreign key here (user ID)
  
  class CheckIn(Model):
      id = column(Integer, primary_key=True)
      checkin_date = column(DateTime)
      # mode foreign keys here
  
  class Order(Model):
      id = column(Integer, primary_key=True)
      # List of items
      # for whom
      #
  
  class Reservation(Model):
      id = column(Integer, primary_key=True)
      # Foredign keys here (Item ID)
  
  def connect():
      # Connect to the Database
      # return a connection
  
  
new_contents: from sqlalchemy import column, Integer, String
  from sqlalchemy import Model, DateTime
  
  
  """
  Model Defintions
  """
  
  """
  Person
  
  id
  username
  first_name
  last_name
  email
  phone
  mailing_address
  city
  state
  zip
  """
  class Person(Model):
      id = column(Integer, primary_key=True)
      username = column(String)
      email = column(String)
      phone = column(String)
  
  """
  Item
  
  id
  name
  description
  location
  size
  owner
  key_words
  genre
  era
  """
  class Item(Model):
      id = column(Integer, primary_key=True)
      name = column(String)
      description = column(String)
      owner = column(Integer)
      location = column(String, nullable=False)
      key_words = column(String)
      genre = column(String)
      era = column(String)
  
  """
  History
  
  id
  date
  action
  item
  commiter
  """
  class History(Model):
      id = column(Integer, primary_key=True)
      date = column(DateTime)
      action = column(String)  # Should be ENUM
      item = column(Integer)
      commiter = column(Integer)
      # Insert foreign keys here
  
  """
  Checkout
  
  id
  outdate
  indate
  commiter
  order_number
  """
  class CheckedOut(Model):
      id = column(Integer, primary_key=True)
      checkout_date = column(DateTime)
      return_date = column(DateTime)
      commiter = column(Integer)
      order_number = column(Integer)
      # Insert foreign key here (user ID)
  
  class CheckIn(Model):
      id = column(Integer, primary_key=True)
      checkin_date = column(DateTime)
      # mode foreign keys here
  
  """
  Order
  
  id
  item_number
  ...
  """
  class Order(Model):
      id = column(Integer, primary_key=True)
      # List of items
      # for whom
      #
  
  """
  Reservation
  
  id
  item
  requestor
  date
  """
  
  class Reservation(Model):
      id = column(Integer, primary_key=True)
      # Foredign keys here (Item ID)
  
  
  """
  Database Access Functions
  """
  
  def connect():
      # Connect to the Database
      # return a connection
  
  
subject: update models