USING: accessors alien.c-types byte-arrays combinators fry grouping images kernel locals math math.vectors sequences specialized-arrays ; SPECIALIZED-ARRAY: half SPECIALIZED-ARRAY: ushort IN: images.normalization ! auto-use tells me: USING: accessors alien.c-types byte-arrays combinators fry grouping half-floats images kernel locals math math.vectors sequences specialized-arrays specialized-arrays.instances.float specialized-arrays.instances.half specialized-arrays.instances.ushort ; IN: images.normalization ! how should it be written?