code: def test_builder_to_backend_smoke(self, use_cpu_only, backend):
      data = np.array([[1, 2, 3], [4, 5, 6]], dtype=np.float32)
      indices = np.array([[1, 0, 1], [1, 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_along_axis(
              data=data,
              indices=indices,
              updates=updates,
              axis=0,
              mode="update",
          )
  
      expected_output_types = (2, 3, types.fp32)
  
      expected_outputs = np.array(
          [[1, 6, 10], [8, 9, 7]], dtype=np.float32
      )
  
      run_compare_builder(
          build,
          input_placeholders,
          input_values,
          expected_output_types,
          expected_outputs,
          use_cpu_only=use_cpu_only,
          frontend_only=False,
          backend=backend,
      )
  
imports: from coremltools.converters.mil import testing_reqs
  from coremltools.converters.mil.testing_reqs import *
  from .testing_utils import run_compare_builder
label_desc: Use image node_id 1 for calling the TestScatterAlongAxis obj's underlying member method code with example usage: obj.test_builder_to_backend_smoke(use_cpu_only, backend) and returns: mb