code: def default_inputs(self):
      return DefaultInputs(
          axis=-1,
          keep_dims=False,
          output_dtype="int32",
      )
  
file_path: coremltools/coremltools/converters/mil/mil/ops/defs/iOS17/reduction.py
imports: import numpy
  from coremltools.converters.mil.mil import types
  from coremltools.converters.mil.mil.input_type import DefaultInputs, InputSpec, TensorInputType
  from coremltools.converters.mil.mil.ops.defs._op_reqs import register_op
  from coremltools.converters.mil.mil.ops.defs.iOS15.reduction import reduce_arg
  from coremltools.converters.mil.mil.ops.defs.iOS17 import _IOS17_TARGET
label_desc: Use image node_id 1 for calling the reduce_arg obj's underlying member method code with example usage: obj.default_inputs() and returns: DefaultInputs