code: def _get_axis_dims(self, element):
      if element.ndims > 1 and not (
          self.stacked or not self.multi_level
      ):
          xdims = element.kdims
      else:
          xdims = element.kdims[0]
      return (xdims, element.vdims[0])
  
imports: import numpy
  from ..core import Dataset, Dimension, util
  from ..element import Bars, Graph
  from ..element.util import categorical_aggregate2d
  from .util import get_axis_padding
label_desc: Use image node_id 1 for calling the BarsMixin obj's underlying member method code with example usage: obj._get_axis_dims(element) and returns: xdims,  element