a =
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5.09493239e-01]
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[7.99265278e-01 6.79596285e-01 3.94246590e-01 2.62955308e-01
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[[2.07146509e-02 4.97642958e-01 3.17907812e-01 2.51840476e-01
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[9.24697687e-01 3.45481100e-01 1.09299411e-01 2.80097841e-01
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[[9.10888754e-03 5.06555427e-01 1.60047221e-01 7.45911417e-01
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4.81367078e-02]
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3.09318931e-01]]]
------------------------------------------------------------
a.shape = (3, 4, 5)