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// Code to send push notifications. Most of the code is taken from https://github.com/sideshow/apns2/
// I wrote this because I didn't want to use any 3rd party dependencies.

package main

import (
	"bytes"
	"context"
	"crypto/ecdsa"
	"crypto/rand"

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// The following code has been tested. It compiles and works.

// Swift code
func encrypt(input: [UInt8]) -> Data? {
    let key = SymmetricKey(size: .bits256)
    let key64 = key.withUnsafeBytes {
        return Data(Array($0)).base64EncodedString()
    }
    print("key64:", key64)
    var sealedBox: AES.GCM.SealedBox

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"""
Computes the probability distribution of states created by
the shuffle2 algorithm. This should return results similar to
enumerate_shuffle.py.

A state is a 2-tuple: (swapped, deck)

The probability of transitioning from one state to another can be represented by
a Markov matrix M.