old_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  
  """
  The `astropy.nddata` subpackage provides the `~astropy.nddata.NDData`
  class and related tools to manage n-dimensional array-based data (e.g.
  CCD images, IFU Data, grid-based simulation data, ...). This is more than
  just `numpy.ndarray` objects, because it provides metadata that cannot
  be easily provided by a single array.
  """
  
  from .nddata import *
  from .nduncertainty import *
  from .flag_collection import *
  from .decorators import *
  from .arithmetic import *
  
  from .. import config as _config
  
  
  class Conf(_config.ConfigNamespace):
      """
      Configuration parameters for `astropy.nddata`.
      """
  
      warn_unsupported_correlated = _config.ConfigItem(
          True,
          'Whether to issue a warning if `~astropy.nddata.NDData` arithmetic '
          'is performed with uncertainties and the uncertainties do not '
          'support the propagation of correlated uncertainties.'
      )
  
      warn_setting_unit_directly = _config.ConfigItem(
          True,
          'Whether to issue a warning when the `~astropy.nddata.NDData` unit '
          'attribute is changed from a non-``None`` value to another value '
          'that data values/uncertainties are not scaled with the unit change.'
      )
  
  conf = Conf()
  
new_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  
  """
  The `astropy.nddata` subpackage provides the `~astropy.nddata.NDData`
  class and related tools to manage n-dimensional array-based data (e.g.
  CCD images, IFU Data, grid-based simulation data, ...). This is more than
  just `numpy.ndarray` objects, because it provides metadata that cannot
  be easily provided by a single array.
  """
  
  from .nddata import *
  from .nddatabase import *
  from .nduncertainty import *
  from .flag_collection import *
  from .decorators import *
  from .arithmetic import *
  
  from .. import config as _config
  
  
  class Conf(_config.ConfigNamespace):
      """
      Configuration parameters for `astropy.nddata`.
      """
  
      warn_unsupported_correlated = _config.ConfigItem(
          True,
          'Whether to issue a warning if `~astropy.nddata.NDData` arithmetic '
          'is performed with uncertainties and the uncertainties do not '
          'support the propagation of correlated uncertainties.'
      )
  
      warn_setting_unit_directly = _config.ConfigItem(
          True,
          'Whether to issue a warning when the `~astropy.nddata.NDData` unit '
          'attribute is changed from a non-``None`` value to another value '
          'that data values/uncertainties are not scaled with the unit change.'
      )
  
  conf = Conf()
  
subject: Add NDDataBase to package import