old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  
  __version__ = '1.0.0-dev'
  __author__ = 'Steven Loria'
  __license__ = 'MIT'
  
  from marshmallow.schema import (
      Schema,
      SchemaOpts,
      MarshalResult,
      UnmarshalResult,
      Serializer,
  )
  from marshmallow.utils import pprint
  from marshmallow.exceptions import MarshallingError, UnmarshallingError, ValidationError
  
  
  __all__ = [
      'Schema',
      'Serializer',
      'SchemaOpts',
      'pprint',
      'MarshalResult',
      'UnmarshalResult',
      'MarshallingError',
      'UnmarshallingError',
      'ValidationError',
  ]
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  
  __version__ = '1.0.0-a+dev'
  __author__ = 'Steven Loria'
  __license__ = 'MIT'
  
  from marshmallow.schema import (
      Schema,
      SchemaOpts,
      MarshalResult,
      UnmarshalResult,
      Serializer,
  )
  from marshmallow.utils import pprint
  from marshmallow.exceptions import MarshallingError, UnmarshallingError, ValidationError
  
  
  __all__ = [
      'Schema',
      'Serializer',
      'SchemaOpts',
      'pprint',
      'MarshalResult',
      'UnmarshalResult',
      'MarshallingError',
      'UnmarshallingError',
      'ValidationError',
  ]
  
subject: Correct version metadata