old_contents: from __future__ import absolute_import, division, print_function
  
  from ..utils import ignoring
  from .core import (Array, stack, concatenate, tensordot, transpose, from_array,
          choose, where, coarsen, constant, fromfunction, compute, unique, store)
  from .core import (arccos, arcsin, arctan, arctanh, arccosh, arcsinh, arctan2,
          ceil, copysign, cos, cosh, degrees, exp, expm1, fabs, floor, fmod,
          frexp, hypot, isinf, isnan, ldexp, log, log10, log1p, modf, radians,
          sin, sinh, sqrt, tan, tanh, trunc, isnull, notnull)
  from .reductions import (sum, prod, mean, std, var, any, all, min, max, vnorm,
                           argmin, argmax,
                           nansum, nanmean, nanstd, nanvar, nanmin,
                           nanmax, nanargmin, nanargmax)
  from .percentile import percentile
  with ignoring(ImportError):
      from .reductions import nanprod
  from . import random, linalg, ghost
  from .wrap import ones, zeros, empty
  from .reblock import reblock, intersect_blockdims
  from ..context import set_options
  
new_contents: from __future__ import absolute_import, division, print_function
  
  from ..utils import ignoring
  from .core import (Array, stack, concatenate, tensordot, transpose, from_array,
          choose, where, coarsen, constant, fromfunction, compute, unique, store)
  from .core import (arccos, arcsin, arctan, arctanh, arccosh, arcsinh, arctan2,
          ceil, copysign, cos, cosh, degrees, exp, expm1, fabs, floor, fmod,
          frexp, hypot, isinf, isnan, ldexp, log, log10, log1p, modf, radians,
          sin, sinh, sqrt, tan, tanh, trunc, isnull, notnull)
  from .reductions import (sum, prod, mean, std, var, any, all, min, max, vnorm,
                           argmin, argmax,
                           nansum, nanmean, nanstd, nanvar, nanmin,
                           nanmax, nanargmin, nanargmax)
  from .percentile import percentile
  with ignoring(ImportError):
      from .reductions import nanprod
  from . import random, linalg, ghost
  from .wrap import ones, zeros, empty
  from .reblock import reblock
  from ..context import set_options
  
subject: remove function from da namespace