code: def test_numpy_formats(self):
      g = Image.linear_gradient("L")
      im = Image.merge(
          "RGB",
          [
              g,
              g.transpose(Image.Transpose.ROTATE_90),
              g.transpose(Image.Transpose.ROTATE_180),
          ],
      )
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.float32)[:-1]
      with pytest.raises(
          ValueError, match="should have table_channels"
      ):
          im.filter(lut)
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.float32).reshape(
          (7 * 9 * 11), 3
      )
      with pytest.raises(
          ValueError, match="should have table_channels"
      ):
          im.filter(lut)
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.float16)
      assert_image_equal(im, im.filter(lut))
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.float32)
      assert_image_equal(im, im.filter(lut))
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.float64)
      assert_image_equal(im, im.filter(lut))
  
      lut = ImageFilter.Color3DLUT.generate(
          (7, 9, 11), lambda r, g, b: (r, g, b)
      )
      lut.table = numpy.array(lut.table, dtype=numpy.int32)
      im.filter(lut)
      lut.table = numpy.array(lut.table, dtype=numpy.int8)
      im.filter(lut)
  
imports: from __future__ import annotations
  from array import array
  import pytest
  from PIL import Image, ImageFilter
  from .helper import assert_image_equal
label_desc: Use image node_id 4 for calling the TestColorLut3DFilter obj's underlying member method code with example usage: obj.test_numpy_formats() without return types