old_contents: """Math and numerical routines.
  """
  
  from . import math_core
  from .math_core import *
  from . import hist
  from .hist import *
  from . import numeric
  from .numeric import *
  from . import stats
  from .stats import *
  
  __all__ = []
  __all__.extend(math_core.__all__)
  __all__.extend(hist.__all__)
  __all__.extend(stats.__all__)
  __all__.extend(numeric.__all__)
  
  from numpy.testing import Tester
  test = Tester().test
  
new_contents: """Math and numerical routines.
  """
  
  from . import math_core
  from .math_core import *
  from . import hist
  from .hist import *
  from . import numeric
  from .numeric import *
  from . import statistic
  from .statistic import *
  
  __all__ = []
  __all__.extend(math_core.__all__)
  __all__.extend(hist.__all__)
  __all__.extend(statistic.__all__)
  __all__.extend(numeric.__all__)
  
  from numpy.testing import Tester
  test = Tester().test
  
subject: update statistic name.