text: """Here we create a relationship with the database and declare entity classes from which PonyORM will create tables
  in the database."""
  from pony.orm import Database, Required, Optional, Set
  from datetime import datetime
  
  
  db = Database('sqlite', '../test.sqlite', create_db=True)
  
  
  class LastestCheck(db.Entity):
      timestamp = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  
  # class CreatedEventTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class RedeemedEventTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class FundedEventTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class SetupFailedTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class LiquidatedTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class StartedLiquidationTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class RedemptionRequestedTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class GotRedemptionSignatureTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class PubkeyRegisteredTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class CourtesyCalledTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  #
  #
  # class RedemptionFeeIncreasedTiming(db.Entity):
  #     alerts = Required(int, default=int(datetime.timestamp(datetime.now())), unique=True)
  
  
  class User(db.Entity):
      telegram_id = Required(int, size=64, unique=True, index=True)
      username = Optional(str)
  
      trackings = Set("Tracking")
      labels = Set("Label")
  
  
  class Label(db.Entity):
      address = Required("Address")
      user = Required("User")
      label = Optional(str)
  
  
  class Address(db.Entity):
      operator = Required(str, unique=True, index=True)
      trackings = Set("Tracking")
      labels = Set("Label")
  
  
  class Tracking(db.Entity):
      operator = Required("Address")
      user = Required("User")
      type = Required(int)
  
  
  # Generate mapping and if tables not exists - create them
  db.generate_mapping(create_tables=True)