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  ______     ___      ____       ___    __    __  
 /_   _//   / _ \\   |  _ \\    / _ \\  \ \\ / // 
 `-| |,-   / //\ \\  | |_| ||  / //\ \\  \ \/ //  
   | ||   |  ___  || | .  //  |  ___  ||  \  //   
   |_||   |_||  |_|| |_|\_\\  |_||  |_||   \//    
   `-`'   `-`   `-`  `-` --`  `-`   `-`     `

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Text this: A psychovisual quality metric in free-energy principle