code: def block_traversal(self):
      # Since the ops are already organized in a topological manner,
      # simply iterate through all the ops
  
      for op in self.block.operations:
          self._visit_op(op)
  
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 8 for calling the TransposeOptimization obj's underlying member method code with example usage: obj.block_traversal() without return types