old_contents: __author__ = "Martin Larralde <martin.larralde@embl.de>"
  __license__ = "MIT"
  __version__ = (
      __import__('pkg_resources')
      .resource_string(__name__, "_version.txt")
      .decode('utf-8')
      .strip()
  )
  
  from .ontology import Ontology  # noqa: F401
  from .term import Term  # noqa: F401
  from .definition import Definition  # noqa: F401
  from .relationship import Relationship  # noqa: F401
  from .synonym import Synonym, SynonymType  # noqa: F401
  from .xref import Xref  # noqa: F401
  
new_contents: __author__ = "Martin Larralde <martin.larralde@embl.de>"
  __license__ = "MIT"
  __version__ = (
      __import__('pkg_resources')
      .resource_string(__name__, "_version.txt")
      .decode('utf-8')
      .strip()
  )
  
  from .ontology import Ontology
  from .term import Term
  from .definition import Definition
  from .relationship import Relationship
  from .synonym import Synonym, SynonymType
  from .pv import PropertyValue, LiteralPropertyValue, ResourcePropertyValue
  from .xref import Xref
  
  __all__ = [
      Ontology.__name__,
      Term.__name__,
      Definition.__name__,
      Relationship.__name__,
      Synonym.__name__,
      SynonymType.__name__,
      PropertyValue.__name__,
      LiteralPropertyValue.__name__,
      ResourcePropertyValue.__name__,
      Xref.__name__,
  ]
  
subject: Add `__all__` to `pronto/__init__.py`