code: def export_tril_one_row() -> None:
      node = onnx.helper.make_node(
          "Trilu",
          inputs=["x"],
          outputs=["y"],
          upper=0,
      )
  
      x = np.random.randint(10, size=(3, 1, 5)).astype(np.int64)
      # X:
      # [[[6, 2, 4, 1, 6]],
      #
      #  [[8, 3, 8, 7, 0]],
      #
      #  [[2, 2, 9, 5, 9]]]
      # expect result:
      # [[[6, 0, 0, 0, 0]],
      #
      #  [[8, 0, 0, 0, 0]],
      #
      #  [[2, 0, 0, 0, 0]]]
      y = tril_reference_implementation(x)
      expect(
          node, inputs=[x], outputs=[y], name="test_tril_one_row_neg"
      )
  
imports: import numpy
  import onnx
  from onnx.backend.test.case.base import Base
  from onnx.backend.test.case.node import expect
label_desc: Use image node_id 17 for calling the Trilu obj's underlying member method code with example usage: obj.export_tril_one_row() without return types