How to use the wildemitter.call function in wildemitter

this.stream = options.stream;
    // Create an RTCPeerConnection via the polyfill
    this.pc = new PeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionContraints);
    this.pc.on('ice', this.onIceCandidate.bind(this));
    if (options.type === 'screen') {
        if (this.parent.localScreen && this.sharemyscreen) {
            log('adding local screen stream to peer connection');
            this.pc.addStream(this.parent.localScreen);
            this.broadcaster = this.parent.connection.socket.sessionid;
        }
    } else {
        this.pc.addStream(this.parent.localStream);
    }
    this.pc.on('addStream', this.handleRemoteStreamAdded.bind(this));
    this.pc.on('removeStream', this.handleStreamRemoved.bind(this));
    WildEmitter.call(this);

    // proxy events to parent
    this.on('*', function(name, value) {
        self.parent.emit(name, value, self);
    });
}

// handle screensharing/broadcast mode
    if (options.type === 'screen') {
        if (this.parent.localScreen && this.sharemyscreen) {
            this.logger.log('adding local screen stream to peer connection');
            this.pc.addStream(this.parent.localScreen);
            this.broadcaster = options.broadcaster;
        }
    } else {
        this.parent.localStreams.forEach(function (stream) {
            self.pc.addStream(stream);
        });
    }

    // call emitter constructor
    WildEmitter.call(this);

    this.on('channelOpen', function (channel) {
        if (channel.protocol === INBAND_FILETRANSFER_V1) {
            channel.onmessage = function (event) {
                var metadata = JSON.parse(event.data);
                var receiver = new FileTransfer.Receiver();
                receiver.receive(metadata, channel);
                self.emit('fileTransfer', metadata, receiver);
                receiver.on('receivedFile', function (file, metadata) {
                    receiver.channel.close();
                });
            };
        }
    });

    // proxy events to parent

});
            peer.handleMessage(message);
        } else if (peers.length) {
            peers.forEach(function(peer) {
                peer.handleMessage(message);
            });
        }
    });

    connection.on('remove', function(room) {
        if (room.id !== self.connection.socket.sessionid) {
            self.removeForPeerSession(room.id, room.type);
        }
    });

    WildEmitter.call(this);

    // log events
    if (this.config.log) {
        this.on('*', function(event, val1, val2) {
            log('event:', event, val1, val2);
        });
    }

    // auto request if configured
    if (this.config.autoRequestMedia) this.startLocalVideo();
}

function Peer(options) {
    var self = this;

    // call emitter constructor
    WildEmitter.call(this);

    this.id = options.id;
    this.parent = options.parent;
    this.type = options.type || 'video';
    this.oneway = options.oneway || false;
    this.sharemyscreen = options.sharemyscreen || false;
    this.browserPrefix = options.prefix;
    this.stream = options.stream;
    this.enableDataChannels = options.enableDataChannels === undefined ? this.parent.config.enableDataChannels : options.enableDataChannels;
    this.receiveMedia = options.receiveMedia || this.parent.config.receiveMedia;
    this.channels = {};
    this.sid = options.sid || Date.now().toString();
    // Create an RTCPeerConnection via the polyfill
    this.pc = new PeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionConstraints);
    this.pc.on('ice', this.onIceCandidate.bind(this));
    this.pc.on('endOfCandidates', function (event) {

function Peer(options) {
    var self = this;

    // call emitter constructor
    WildEmitter.call(this);

    this.id = options.id;
    this.parent = options.parent;
    this.type = options.type || 'video';
    this.oneway = options.oneway || false;
    this.sharemyscreen = options.sharemyscreen || false;
    this.browserPrefix = options.prefix;
    this.stream = options.stream;
    this.enableDataChannels = options.enableDataChannels === undefined ? this.parent.config.enableDataChannels : options.enableDataChannels;
    this.receiveMedia = options.receiveMedia || this.parent.config.receiveMedia;
    this.channels = {};
    this.sid = options.sid || Date.now().toString();
    // Create an RTCPeerConnection via the polyfill
    this.pc = new PeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionConstraints);
    this.pc.on('ice', this.onIceCandidate.bind(this));
    this.pc.on('offer', function (offer) {

function Sender(opts) {
    WildEmitter.call(this);
    var options = opts || {};
    this.config = {
        chunksize: 16384,
        pacing: 0
    };
    // set our config from options
    var item;
    for (item in options) {
        this.config[item] = options[item];
    }

    this.file = null;
    this.channel = null;
}
util.inherits(Sender, WildEmitter);

function Sender(opts) {
    WildEmitter.call(this);
    var self = this;
    this.base = new base.Sender(opts);

    var options = opts || {};
    if (!options.hash) {
        options.hash = 'sha-1';
    }
    this.hash = hashes.createHash(options.hash);

    this.base.on('progress', function (start, size, data) {
        self.emit('progress', start, size, data);
        if (data) {
            self.hash.update(new Uint8Array(data));
        }
    });
    this.base.on('sentFile', function () {

function Receiver(opts) {
    WildEmitter.call(this);
    var self = this;
    this.base = new base.Receiver(opts);

    var options = opts || {};
    if (!options.hash) {
        options.hash = 'sha-1';
    }
    this.hash = hashes.createHash(options.hash);

    this.base.on('progress', function (start, size, data) {
        self.emit('progress', start, size, data);
        if (data) {
            self.hash.update(new Uint8Array(data));
        }
    });
    this.base.on('receivedFile', function (file, metadata) {

function Receiver() {
    WildEmitter.call(this);

    this.receiveBuffer = [];
    this.received = 0;
    this.metadata = {};
    this.channel = null;
}
util.inherits(Receiver, WildEmitter);

function SessionManager(conf) {
    WildEmitter.call(this);

    conf = conf || {};

    this.jid = conf.jid;
    this.selfID = conf.selfID || (this.jid && this.jid.full) || this.jid || '';

    this.sessions = {};
    this.peers = {};

    this.prepareSession = conf.prepareSession || function (opts) {
        if (opts.applicationTypes.indexOf('rtp') >= 0) {
            return new MediaSession(opts);
        }
        if (opts.applicationTypes.indexOf('filetransfer') >= 0) {
            return new FileSession(opts);
        }