невозможно загрузить данные из файла CupriteS1_F224.mat с помощью python

Question

      def read_HSI():
    X = loadmat('CupriteS1_F224.mat')['cupriteS1_F224']
    y = loadmat('groundTruth_Cuprite_nEnd12.mat')['groundTruth_Cuprite_nEnd12']
    print(f"X shape:{X.shape}\ny shape: {y.shape}")
    return X,y
X, y = read_HSI()
KeyError                                  Traceback (most recent call last)
<ipython-input-7-0ddc59b6be0b> in <module>
      4     print(f"X shape:{X.shape}\ny shape: {y.shape}")
      5     return X,y
----> 6 X, y = read_HSI()

<ipython-input-7-0ddc59b6be0b> in read_HSI()
      1 def read_HSI():
----> 2     X = loadmat('CupriteS1_F224.mat')['cupriteS1_F224']
      3     y = loadmat('groundTruth_Cuprite_nEnd12.mat')['groundTruth_Cuprite_nEnd12']
      4     print(f"X shape:{X.shape}\ny shape: {y.shape}")
      5     return X,y

KeyError: 'cupriteS1_F224'

https://rslab.ut.ac.ir/data https://rslab.ut.ac.ir/documents/81960329/82034936/CupriteS1_F224.mat