code: def can_transpose_pass(self):
      if self.axis_var.val is not None:
          return True
      return False
  
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from coremltools.converters.mil.mil.passes.pass_registry import register_pass
  from coremltools.converters.mil.mil import Builder
  from coremltools.converters.mil.mil.var import Var
  import logging
  import numpy
  import copy
  from collections import defaultdict
label_desc: Use image node_id 2 for calling the transform_concat obj's underlying member method code with example usage: obj.can_transpose_pass() and returns: False, True