code: function PropertyValue(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 a PropertyValue.
  @memberof com.signalfx.metrics.protobuf
  @interface IPropertyValue
  @property {string|null} [strValue] PropertyValue strValue
  @property {number|null} [doubleValue] PropertyValue doubleValue
  @property {number|Long|null} [intValue] PropertyValue intValue
  @property {boolean|null} [boolValue] PropertyValue boolValue
   
  Constructs a new PropertyValue.
  @memberof com.signalfx.metrics.protobuf
  @classdesc Represents a PropertyValue.
  @implements IPropertyValue
  @constructor
  @param {com.signalfx.metrics.protobuf.IPropertyValue=} [properties] Properties to set