old_contents: 
  # pylint: disable=W0614,W0401,W0611
  
  import numpy as np
  
  from pandas.core.algorithms import factorize, match, unique, value_counts
  
  from pandas.core.common import isnull, notnull, save, load
  from pandas.core.categorical import Categorical, Factor
  from pandas.core.format import (set_printoptions, reset_printoptions,
                                  set_eng_float_format)
  from pandas.core.index import Index, Int64Index, MultiIndex
  
  from pandas.core.series import Series, TimeSeries
  from pandas.core.frame import DataFrame
  from pandas.core.panel import Panel
  from pandas.core.groupby import groupby
  from pandas.core.reshape import (pivot_simple as pivot, get_dummies,
                                   lreshape)
  
  WidePanel = Panel
  
  from pandas.tseries.offsets import DateOffset
  from pandas.tseries.tools import to_datetime
  from pandas.tseries.index import (DatetimeIndex, Timestamp,
                                    date_range, bdate_range)
  from pandas.tseries.period import Period, PeriodIndex
  
  # legacy
  from pandas.core.daterange import DateRange # deprecated
  import pandas.core.datetools as datetools
  
new_contents: 
  # pylint: disable=W0614,W0401,W0611
  
  import numpy as np
  
  from pandas.core.algorithms import factorize, match, unique, value_counts
  
  from pandas.core.common import isnull, notnull, save, load
  from pandas.core.categorical import Categorical, Factor
  from pandas.core.format import (set_printoptions, reset_printoptions,
                                  set_eng_float_format)
  from pandas.core.index import Index, Int64Index, MultiIndex
  
  from pandas.core.series import Series, TimeSeries
  from pandas.core.frame import DataFrame
  from pandas.core.panel import Panel
  from pandas.core.groupby import groupby
  from pandas.core.reshape import (pivot_simple as pivot, get_dummies,
                                   lreshape)
  
  WidePanel = Panel
  
  from pandas.tseries.offsets import DateOffset
  from pandas.tseries.tools import to_datetime
  from pandas.tseries.index import (DatetimeIndex, Timestamp,
                                    date_range, bdate_range)
  from pandas.tseries.period import Period, PeriodIndex
  
  # legacy
  from pandas.core.daterange import DateRange # deprecated
  import pandas.core.datetools as datetools
  
  from pandas.core.config import get_option,set_option,reset_option,\
                                 reset_options,describe_options
  
subject: Add new core.config API functions to the pandas top level module