How to use the blessed-contrib.line function in blessed-contrib

y: empty(80),
    style: {
      line: 'green'
    }
  }

  if (argv.help || !argv._[0]) {
    console.log('Usage: climem FILE')
    console.log('       climem PORT HOST')
    console.log('to enable in any node process, use node -r climem')
    process.exit(1)
  }

  if (!argv.data) {
    screen = blessed.screen()
    line = contrib.line({
      width: 80,
      height: 30,
      xLabelPadding: 3,
      xPadding: 5,
      label: 'Memory (MB)',
      showLegend: true,
      legend: { width: 12 }
    })
    screen.append(line)

    screen.key(['escape', 'q', 'C-c'], () => {
      return process.exit(0)
    })
  }

  pump(net.connect(argv._[0], argv._[1]),

const draw_chart = (data) => {
  let min = _.min( _.map(data, (d) => _.min(d.y)) )
  line = contrib.line({
    minY: min,
    xLabelPadding: 3,
    xPadding: 5,
    wholeNumbersOnly: false,
    label: 'Sell vs Buy'
  })
  screen.append(line)
  screen.key(['escape', 'q', 'C-c'], function(ch, key) {
    return process.exit(0);
  })
  line.setData(data)
  screen.render()
}

function Test() {
        var screen = blessed.screen({});
        //create layout and widgets
        var grid = new contrib.grid({ rows: 12, cols: 12, screen: screen });
        var line = contrib.line({ style: { line: "yellow",
                text: "green",
                baseline: "black" },
            xLabelPadding: 3,
            xPadding: 5,
            label: 'Title' }), data = {
            x: ['t1', 't2', 't3', 't4'],
            y: [5, 1, 7, 5]
        };
        screen.append(line); //must append before setting data 
        line.setData([data]);
        screen.key(['escape', 'q', 'C-c'], function (ch, key) {
            return process.exit(0);
        });
        screen.render();
    }
    return Test;

getReport().then(data => {
  const line = contrib.line({
    style: {
      line: 'yellow',
      text: 'green',
      baseline: 'black'
    },
    xLabelPadding: 3,
    xPadding: 5,
    showLegend: true,
    wholeNumbersOnly: false //true=do not show fraction in y axis
  });
  const commits = {
    title: '',
    x: Object.keys(data),
    y: Object.values(data)
  };
  console.log(getCalendar(data));

initPnl(){
		const t = this;
		this.pnl = contrib.line({ 
			style:{ 
				line: "yellow", 
				text: "white", 
				baseline: "white",
			},
			xPadding: 5,
			border: {
				type: 'line',
			},
			padding: DEFAULT_PADDING,
			showLegend: false,
			wholeNumbersOnly: false, //true=do not show fraction in y axis
			label: 'Pnl',
			top: '33.33%',
			left: WIDTH_LEFT_PANEL / 2 + '%',
			width: WIDTH_LEFT_PANEL / 2 + '%',

initPnl(){
		const t = this;
		this.pnl = line({ 
			style:{ 
				line: "yellow", 
				text: "white", 
				baseline: "white",
			},
			xPadding: 5,
			border: {
				type: 'line',
			},
			padding: DEFAULT_PADDING,
			showLegend: false,
			wholeNumbersOnly: false, //true=do not show fraction in y axis
			label: 'Pnl',
			top: '33.33%',
			left: WIDTH_LEFT_PANEL / 2 + '%',
			width: WIDTH_LEFT_PANEL / 2 + '%',

BaseLineGraph.prototype._createGraph = function (options) {
  this.node = contrib.line({
    label: this.label,
    border: "line",
    numYLabels: 4,
    maxY: options.maxY,
    showLegend: false,
    wholeNumbersOnly: true,
    style: {
      border: {
        fg: this.layoutConfig.borderColor
      }
    }
  });

  this.recalculatePosition();

  this.parent.append(this.node);

padding: 1
});

const roll = grid.set(7, 6, 5, 6, blessed.log, {
  label:   "Analyzing variations",
  content: "Waiting...",
  padding: 1
});

const genesis = grid.set(8, 0, 4, 6, blessed.box, {
  label:   "Genetics info",
  content: "Loading...",
  padding: 1
});

const chart = contrib.line({
  height:           12,
  top:              1,
  xPadding:         1,
  xLabelPadding:    1,
  wholeNumbersOnly: true,
  showLegend:       false
});
genesis.append(chart);

const breaks_bar = contrib.gauge({
  showLabel: false,
  height:  3,
  top:     5,
  left:    20,
  width:   30
});