import frosty/streams
type
  MyObject = object
    x: int
    y: string
var
  data = MyObject(x: 4, y: "three")
  handle = openFileStream("somefile", fmWrite)
# write serialized data into the file stream
freeze(handle, data)
close handle

import frosty/streams
var
  data: MyObject
  handle = openFileStream("somefile", fmRead)
# read deserialized data from the file stream
thaw(handle, data)
assert data == MyObject(x: 4, y: "three")
close handle

proc serialize*[S](output: var S; login: LoginCredentials) =
  ## avoid accidentally serializing passwords
  serialize(output, login.username)

proc deserialize*[S](input: var S; login: var LoginCredentials) =
  login.password = "{scrubbed}"
  deserialize(input, login.username)

import frosty
export frosty
proc serialize*(output: var Stream; input: string; length: int) =
  write(output, input)
proc deserialize*(input: var Stream; output: var string; length: int) =
  readStr(input, length, output)
proc serialize*[T](output: var Stream; input: T) =
  write(output, input)

proc deserialize*[T](input: var Stream; output: var T) =
  read(input, output)

import frosty/streams
var brrr = freeze MyObject(x: 2, y: "four")
assert thaw[MyObject](brrr) == MyObject(x: 2, y: "four")