How to use the matrix-js-sdk.EventStatus function in matrix-js-sdk

function printLine(event) {
    var fmt;
    var name = event.sender ? event.sender.name : event.getSender();
    var time = new Date(
        event.getTs()
    ).toISOString().replace(/T/, ' ').replace(/\..+/, '');
    var separator = "<<<";
    if (event.getSender() === myUserId) {
        name = "Me";
        separator = ">>>";
        if (event.status === sdk.EventStatus.SENDING) {
            separator = "...";
            fmt = clc.xterm(8);
        }
        else if (event.status === sdk.EventStatus.NOT_SENT) {
            separator = " x ";
            fmt = clc.redBright;
        }
    }
    var body = "";

    var maxNameWidth = 15;
    if (name.length > maxNameWidth) {
        name = name.substr(0, maxNameWidth-1) + "\u2026";
    }

    if (event.getType() === "m.room.message") {
        body = event.getContent().body;
    }
    else if (event.isState()) {
        var stateName = event.getType();

return room.getPendingEvents().filter(function(ev) {
        return ev.status === Matrix.EventStatus.NOT_SENT;
    });
}

return room.timeline.filter(function(ev) {
            return ev.status === Matrix.EventStatus.NOT_SENT;
        });
    },

function printLine(event) {
    var fmt;
    var name = event.sender ? event.sender.name : event.getSender();
    var time = new Date(
        event.getTs()
    ).toISOString().replace(/T/, ' ').replace(/\..+/, '');
    var separator = "<<<";
    if (event.getSender() === myUserId) {
        name = "Me";
        separator = ">>>";
        if (event.status === sdk.EventStatus.SENDING) {
            separator = "...";
            fmt = clc.xterm(8);
        }
        else if (event.status === sdk.EventStatus.NOT_SENT) {
            separator = " x ";
            fmt = clc.redBright;
        }
    }
    var body = "";

    var maxNameWidth = 15;
    if (name.length > maxNameWidth) {
        name = name.substr(0, maxNameWidth-1) + "\u2026";
    }

    if (event.getType() === "m.room.message") {