>>> parseQueryParamMaybe "true" :: Maybe Bool Just True
>>> parseQueryParamWithPrefix "z" "z10" :: Either Text Int Right 10
>>> parseQueryParams ["1", "2", "3"] :: Either Text [Int] Right [1,2,3] >>> parseQueryParams ["64", "128", "256"] :: Either Text [Word8] Left "out of bounds: `256' (should be between 0 and 255)"