docstr: Compatibility method introduced for v1.13.0 to smooth
  over addition of per_geom kwarg for isscalar method.
docstr_tok: ["Compatibility","method","introduced","for","v1.13.0","to","smooth","over","addition","of","per_geom","kwarg","for","isscalar","method","."]
code: def isunique(cls, dataset, dim, per_geom=False):
      """
      Compatibility method introduced for v1.13.0 to smooth
      over addition of per_geom kwarg for isscalar method.
      """
      try:
          return cls.isscalar(dataset, dim, per_geom)
      except TypeError:
          return cls.isscalar(dataset, dim)
  
imports: import sys
  import warnings
  import numpy
  import param
  from ..None import util
  from ..element import Element
  from ..ndmapping import NdMapping
  from .util import finite_range
label_desc: Use image node_id 12 for calling the Interface obj's underlying member method code with example usage: obj.isunique(cls, dataset, dim, per_geom) and returns: cls, cls