docstr: Given a dataset object and data in the appropriate format for
  the interface, return a simple scalar.
docstr_tok: ["Given","a","dataset","object","and","data","in","the","appropriate","format","for","the","interface",",","return","a","simple","scalar","."]
code: def unpack_scalar(cls, dataset, data):
      """
      Given a dataset object and data in the appropriate format for
      the interface, return a simple scalar.
      """
      if ibis4():
          count = data.count().execute()
      else:
          count = data[[]].count().execute()
  
      if len(data.columns) > 1 or count != 1:
          return data
      return data.execute().iat[0, 0]
  
imports: import sys
  from collections.abc import Iterable
  from functools import lru_cache
  import numpy
  from packaging.version import Version
  from ..None import util
  from ..element import Element
  from ..ndmapping import NdMapping, item_check, sorted_context
  from .None import pandas
  from .interface import Interface
  from .util import cached
label_desc: Use image node_id 19 for calling the IbisInterface obj's underlying member method code with example usage: obj.unpack_scalar(cls, dataset, data) and returns: data, data