code: function randomIncident(types, start, end) {
    const x1 = randomDate(start, end);
    const x2 = new Date(x1);
    x2.setDate(x1.getDate() + (Math.floor(Math.random() * 45)));
    Incidents.insert({
      x1: x1.getTime(),
      x2: x2.getTime(),
      y1: (Math.floor(Math.random() * 99)),
      type: types[(Math.floor(Math.random() * 2))],
    });
  }
docs: Insert a random incident into a collection
  @param {Array} types - the types of incidents ['info', 'success']
  @param {Date} start - the start Date
  @param {Date} end - the end Date
  @return None