class_docstr: Test the ABI enhancement functions.
docstr: Test the cimss_true_color_contrast enhancement.
docstr_tok: ["Test","the","cimss_true_color_contrast","enhancement","."]
code: def test_cimss_true_color_contrast(self):
      """Test the cimss_true_color_contrast enhancement."""
      from trollimage.xrimage import XRImage
  
      from satpy.enhancements.abi import cimss_true_color_contrast
  
      expected = np.array(
          [
              [
                  [0.0, 0.0, 0.05261956, 0.13396146],
                  [0.21530335, 0.29664525, 0.37798715, 0.45932905],
                  [0.54067095, 0.62201285, 0.70335475, 0.78469665],
                  [0.86603854, 0.94738044, 1.0, 1.0],
              ]
          ]
      )
      img = XRImage(self.da)
      cimss_true_color_contrast(img)
      np.testing.assert_almost_equal(img.data.compute(), expected)
  
file_path: satpy/satpy/tests/enhancement_tests/test_abi.py
imports: import unittest
  import dask.array
  import numpy
  import xarray
label_desc: Use image node_id 2 for calling the TestABIEnhancement obj's underlying member method code with example usage: obj.test_cimss_true_color_contrast() without return types