t() :: %CRC.Model{
  aliases: %{optional(atom()) => binary()},
  bits: 0..255,
  check: 0..18_446_744_073_709_551_615,
  init: 0..18_446_744_073_709_551_615,
  key: atom(),
  name: binary(),
  poly: 0..18_446_744_073_709_551_615,
  refin: boolean(),
  refout: boolean(),
  residue: 0..18_446_744_073_709_551_615,
  sick: boolean(),
  slow: boolean(),
  value: non_neg_integer(),
  width: 0..255,
  xorout: 0..18_446_744_073_709_551_615
}