code: function Event(properties) {
                          this.dimensions = [];
                          this.properties = [];
                          if (properties)
                              for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                  if (properties[keys[i]] != null)
                                      this[keys[i]] = properties[keys[i]];
                      }
docs: Properties of an Event.
  @memberof com.signalfx.metrics.protobuf
  @interface IEvent
  @property {string} eventType Event eventType
  @property {Array.<com.signalfx.metrics.protobuf.IDimension>|null} [dimensions] Event dimensions
  @property {Array.<com.signalfx.metrics.protobuf.IProperty>|null} [properties] Event properties
  @property {com.signalfx.metrics.protobuf.EventCategory|null} [category] Event category
  @property {number|Long|null} [timestamp] Event timestamp
   
  Constructs a new Event.
  @memberof com.signalfx.metrics.protobuf
  @classdesc Represents an Event.
  @implements IEvent
  @constructor
  @param {com.signalfx.metrics.protobuf.IEvent=} [properties] Properties to set