code: def test_builder_to_backend_smoke(self, compute_unit, backend):
      data = np.array([[1, 2, 3], [4, 5, 6]], dtype=np.float32)
      indices = np.array([1, 0], dtype=np.int32)
      updates = np.array([[5, 6, 7], [8, 9, 10]], dtype=np.float32)
      input_placeholders = {
          "data": mb.placeholder(shape=data.shape),
          "indices": mb.placeholder(
              shape=indices.shape, dtype=types.int32
          ),
          "updates": mb.placeholder(shape=updates.shape),
      }
  
      input_values = {
          "data": data,
          "indices": indices,
          "updates": updates,
      }
  
      def build(data, indices, updates):
          return (
              mb.scatter(data=data, indices=indices, updates=updates),
          )
  
      expected_output_types = (2, 3, types.fp32)
  
      expected_outputs = np.array(
          [[9, 11, 13], [9, 11, 13]], dtype=np.float32
      )
  
      run_compare_builder(
          build,
          input_placeholders,
          input_values,
          expected_output_types,
          expected_outputs,
          compute_unit=compute_unit,
          backend=backend,
      )
  
imports: import itertools
  import numpy
  import pytest
  import coremltools
  from coremltools._deps import _HAS_TF_2, MSG_TF2_NOT_FOUND
  from coremltools.converters.mil.mil import Builder
  from coremltools.converters.mil.mil import types
  from coremltools.converters.mil.mil.ops.tests.iOS14 import backends
  from coremltools.converters.mil.mil.ops.tests.testing_utils import mark_api_breaking, run_compare_builder
  from coremltools.converters.mil.testing_reqs import compute_units
label_desc: Use image node_id 1 for calling the TestScatter obj's underlying member method code with example usage: obj.test_builder_to_backend_smoke(compute_unit, backend) and returns: mb