old_contents: from .core import *
  from .relationship import (NotConnected, OUTGOING, INCOMING, EITHER, RelationshipTo,
          RelationshipFrom, Relationship)
  from .cardinality import (AttemptedCardinalityViolation,
          CardinalityViolation, ZeroOrMore, OneOrMore, ZeroOrOne, One)
  from .properties import (StringProperty, IntegerProperty, AliasProperty,
          FloatProperty, BooleanProperty, DateTimeProperty, DateProperty)
  from .exception import InflateError, DeflateError, UniqueProperty
  from .signals import SIGNAL_SUPPORT
  
new_contents: from .core import *
  from .relationship import (NotConnected, OUTGOING, INCOMING, EITHER,
          RelationshipTo, RelationshipFrom, Relationship)
  from .cardinality import (AttemptedCardinalityViolation,
          CardinalityViolation, ZeroOrMore, OneOrMore, ZeroOrOne, One)
  from .properties import (StringProperty, IntegerProperty, AliasProperty,
          FloatProperty, BooleanProperty, DateTimeProperty, DateProperty,
          JSONProperty)
  from .exception import InflateError, DeflateError, UniqueProperty
  from .signals import SIGNAL_SUPPORT
  
subject: Include JSONProperty in imports