code: def packed(cls, dataset):
      import xarray as xr
  
      return isinstance(dataset.data, xr.DataArray)
  
imports: import sys
  import types
  import numpy
  import pandas
  from ..None import util
  from ..dimension import Dimension, asdim, dimension_name
  from ..element import Element
  from ..ndmapping import NdMapping, item_check, sorted_context
  from .grid import GridInterface
  from .interface import DataError, Interface
  from .util import dask_array_module, finite_range
label_desc: Use image node_id 5 for calling the XArrayInterface obj's underlying member method code with example usage: obj.packed(cls, dataset) and returns: isinstance