code: def _find_const_input_val(op):
      if op.x.val is not None:
          return op.x.val
      if op.y.val is not None:
          return op.y.val
      return None
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/coremltools/converters/mil/mil/passes/elementwise_batchnorm_fusion.py
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
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: _find_const_input_val(op) and returns: None, op, op