code: function(opts) {
    if(!opts) opts = {};
    var libpath = opts['path'];
    var key = opts['key'];
  
    this._library = this._createLibrary(libpath);
    this._initKey(key);
    this._initHandle(this._key);
  }
docs: Creates a ToxDns instance.
  @class
  @param {Object} [opts] Options
  @param {String} [opts.path] Path to libtoxdns.so
  @param {(Buffer|String)} [opts.key] Public key of ToxDns3 service