sessionSecret?

[andrew-luhring]

I admittedly haven't spent much time with the app yet, but what's the "sessionSecret" in config/development.js for? I mean, I understand what its' purpose is, I'm just confused about what to put as its' value... in the ruby quickstart the equivalent file is the

client_secrets.json

{
    "web": {
        "client_id": "1234.apps.googleusercontent.com",
        "client_secret": "ITS_A_SECRET_TO_EVERYBODY",
        "redirect_uris": [
            "http://example.com/oauth2callback"
        ],
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "token_uri": "https://accounts.google.com/o/oauth2/token"
    }
}

and they make no mention of a 'sessionSecret'...