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Example of Span<T> and Slicing
Span<byte> slicedBytes = bytes.Slice(start: 5, length: 2);
slicedBytes[0] = 42;
slicedBytes[1] = 43;
Assert.Equal(42, slicedBytes[0]);
Assert.Equal(43, slicedBytes[1]);
Assert.Equal(arr[5], slicedBytes[0]);
Assert.Equal(arr[6], slicedBytes[1]);
slicedBytes[2] = 44; // Throws IndexOutOfRangeException
bytes[2] = 45; // OK
Assert.Equal(arr[2], bytes[2]);
Assert.Equal(45, arr[2]);
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