old_contents: """
  Utility functionality (:mod:`skbio.util`)
  =========================================
  
  .. currentmodule:: skbio.util
  
  This package provides several subpackages containing various utility
  functionality, including custom exception/warning definitions and I/O and
  unit-testing convenience functions.
  
  Subpackages
  -----------
  
  .. autosummary::
     :toctree: generated/
  
     io
     misc
     testing
  
  Exceptions
  ----------
  
  .. autosummary::
     :toctree: generated/
  
     FileFormatError
     RecordError
     FieldError
  
  Warnings
  --------
  
  .. autosummary::
     :toctree: generated/
  
     EfficiencyWarning
  
  """
  
  # ----------------------------------------------------------------------------
  # Copyright (c) 2013--, scikit-bio development team.
  #
  # Distributed under the terms of the Modified BSD License.
  #
  # The full license is in the file COPYING.txt, distributed with this software.
  # -----------------------------------------------------------------------------
  
  from ._exception import FileFormatError, RecordError, FieldError
  from ._warning import EfficiencyWarning
  
  __all__ = ['FileFormatError', 'RecordError', 'FieldError', 'EfficiencyWarning']
  
  from numpy.testing import Tester
  test = Tester().test
  
new_contents: """
  Utility functionality (:mod:`skbio.util`)
  =========================================
  
  .. currentmodule:: skbio.util
  
  This package provides general exception/warning definitions used throughout
  scikit-bio, as well as several subpackages containing various utility
  functionality, including I/O and unit-testing convenience functions.
  
  Subpackages
  -----------
  
  .. autosummary::
     :toctree: generated/
  
     io
     misc
     testing
  
  Exceptions
  ----------
  
  .. autosummary::
     :toctree: generated/
  
     FileFormatError
     RecordError
     FieldError
  
  Warnings
  --------
  
  .. autosummary::
     :toctree: generated/
  
     EfficiencyWarning
  
  """
  
  # ----------------------------------------------------------------------------
  # Copyright (c) 2013--, scikit-bio development team.
  #
  # Distributed under the terms of the Modified BSD License.
  #
  # The full license is in the file COPYING.txt, distributed with this software.
  # -----------------------------------------------------------------------------
  
  from ._exception import FileFormatError, RecordError, FieldError
  from ._warning import EfficiencyWarning
  
  __all__ = ['FileFormatError', 'RecordError', 'FieldError', 'EfficiencyWarning']
  
  from numpy.testing import Tester
  test = Tester().test
  
subject: update skbio.util docstring