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  ____      / _ \\  | |  | ||   / _ \\  | \  / || 
 |    \\   / //\ \\ | |/\| ||  | / \ || |  \/  || 
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 |_|`-`   `-`   `-` `-`   `-`   `---`   `-`  `-`  
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Text this: CayleyNets : graph convolutional neural networks with complex rational spectral filters