typings incorrectly generated with `any`

[tamird]

Interestingly, this only affects a few protos in my application.

Given the proto:

syntax = "proto2";
package cockroach.ts.tspb;
option go_package = "tspb";

import "gogoproto/gogo.proto";

// TimeSeriesQueryResponse is the standard response for time series queries
// returned to cockroach clients.
message TimeSeriesQueryResponse {
  // Result is the data returned from a single metric query over a time span.
  message Result {
    optional Query query = 1 [(gogoproto.nullable) = false, (gogoproto.embed) = true];
    repeated TimeSeriesDatapoint datapoints = 2 [(gogoproto.nullable) = false];
  }

  // A set of Results; there will be one result for each Query in the matching
  // TimeSeriesQueryRequest, in the same order. A Result will be present for
  // each Query even if there are zero datapoints to return.
  repeated Result results = 1 [(gogoproto.nullable) = false];
}

type Result$Properties below has any properties:

            namespace TimeSeriesQueryResponse {

                /**
                 * Properties of a Result.
                 * @typedef cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties
                 * @type Object
                 * @property {*} [query] Result query.
                 * @property {Array.<*>} [datapoints] Result datapoints.
                 */
                type Result$Properties = {
                    query?: any;
                    datapoints?: any[];
                };

                /**
                 * Constructs a new Result.
                 * @exports cockroach.ts.tspb.TimeSeriesQueryResponse.Result
                 * @implements cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties
                 * @constructor
                 * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties=} [properties] Properties to set
                 */
                class Result implements cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties {

                    /**
                     * Constructs a new Result.
                     * @exports cockroach.ts.tspb.TimeSeriesQueryResponse.Result
                     * @implements cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties
                     * @constructor
                     * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties=} [properties] Properties to set
                     */
                    constructor(properties?: cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties);

                    /**
                     * @type {cockroach.ts.tspb.Query$Properties|undefined}
                     */
                    public query?: cockroach.ts.tspb.Query$Properties;

                    /**
                     * @type {Array.<cockroach.ts.tspb.TimeSeriesDatapoint$Properties>|undefined}
                     */
                    public datapoints?: cockroach.ts.tspb.TimeSeriesDatapoint$Properties[];

                    /**
                     * Creates a new Result instance using the specified properties.
                     * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties=} [properties] Properties to set
                     * @returns {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} Result instance
                     */
                    public static create(properties?: cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties): cockroach.ts.tspb.TimeSeriesQueryResponse.Result;

                    /**
                     * Encodes the specified Result message. Does not implicitly {@link cockroach.ts.tspb.TimeSeriesQueryResponse.Result.verify|verify} messages.
                     * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties} message Result message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encode(message: cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Encodes the specified Result message, length delimited. Does not implicitly {@link cockroach.ts.tspb.TimeSeriesQueryResponse.Result.verify|verify} messages.
                     * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties} message Result message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encodeDelimited(message: cockroach.ts.tspb.TimeSeriesQueryResponse.Result$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Decodes a Result message from the specified reader or buffer.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @param {number} [length] Message length if known beforehand
                     * @returns {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} Result
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): cockroach.ts.tspb.TimeSeriesQueryResponse.Result;

                    /**
                     * Decodes a Result message from the specified reader or buffer, length delimited.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @returns {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} Result
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): cockroach.ts.tspb.TimeSeriesQueryResponse.Result;

                    /**
                     * Verifies a Result message.
                     * @param {Object.<string,*>} message Plain object to verify
                     * @returns {?string} `null` if valid, otherwise the reason why it is not
                     */
                    public static verify(message: { [k: string]: any }): string;

                    /**
                     * Creates a Result message from a plain object. Also converts values to their respective internal types.
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} Result
                     */
                    public static fromObject(object: { [k: string]: any }): cockroach.ts.tspb.TimeSeriesQueryResponse.Result;

                    /**
                     * Creates a Result message from a plain object. Also converts values to their respective internal types.
                     * This is an alias of {@link cockroach.ts.tspb.TimeSeriesQueryResponse.Result.fromObject}.
                     * @function
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} Result
                     */
                    public static from(object: { [k: string]: any }): cockroach.ts.tspb.TimeSeriesQueryResponse.Result;

                    /**
                     * Creates a plain object from a Result message. Also converts values to other types if specified.
                     * @param {cockroach.ts.tspb.TimeSeriesQueryResponse.Result} message Result
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public static toObject(message: cockroach.ts.tspb.TimeSeriesQueryResponse.Result, options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Creates a plain object from this Result message. Also converts values to other types if specified.
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public toObject(options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Converts this Result to JSON.
                     * @returns {Object.<string,*>} JSON object
                     */
                    public toJSON(): { [k: string]: any };
                }
            }

Given the proto:

syntax = "proto3";
package cockroach.server.serverpb;
option go_package = "serverpb";

// EventsResponse contains a set of event log entries. This is always limited
// to the latest N entries (N is enforced in the associated endpoint).
message EventsResponse {
  message Event {
    // Timestamp is embedded in each place it's used, because proto3 defines a
    // built-in Timestamp message that we can't use, because gogoprotobuf
    // doesn't support all proto3 protobuf types yet. See
    // https://github.com/gogo/protobuf/issues/155.
    message Timestamp {
      // The time in seconds since, January 1, 1970 UTC (Unix time).
      int64 sec = 1;
      // nsec specifies a non-negative nanosecond offset within sec.
      // It must be in the range [0, 999999999].
      uint32 nsec = 2;
    }

    // timestamp is the time at which the event occurred.
    Timestamp timestamp = 1 [(gogoproto.nullable) = false];

    // event_type is the type of the event (e.g. "create_table", "drop_table".
    string event_type = 2;

    // target_id is the target for this event.
    int64 target_id = 3 [(gogoproto.customname) = "TargetID"];

    // reporting_id is the reporting ID for this event.
    int64 reporting_id = 4 [(gogoproto.customname) = "ReportingID"];

    // info has more detailed information for the event. The contents vary
    // depending on the vent.
    string info = 5;

    // unique_id is a unique identifier for this event.
    bytes unique_id = 6 [(gogoproto.customname) = "UniqueID"];
  }

  repeated Event events = 1 [(gogoproto.nullable) = false];
}

Event$Properties below has timestamp?: any;

            namespace EventsResponse {

                /**
                 * Properties of an Event.
                 * @typedef cockroach.server.serverpb.EventsResponse.Event$Properties
                 * @type Object
                 * @property {*} [timestamp] Event timestamp.
                 * @property {string} [event_type] Event event_type.
                 * @property {Long} [target_id] Event target_id.
                 * @property {Long} [reporting_id] Event reporting_id.
                 * @property {string} [info] Event info.
                 * @property {Uint8Array} [unique_id] Event unique_id.
                 */
                type Event$Properties = {
                    timestamp?: any;
                    event_type?: string;
                    target_id?: Long;
                    reporting_id?: Long;
                    info?: string;
                    unique_id?: Uint8Array;
                };

                /**
                 * Constructs a new Event.
                 * @exports cockroach.server.serverpb.EventsResponse.Event
                 * @implements cockroach.server.serverpb.EventsResponse.Event$Properties
                 * @constructor
                 * @param {cockroach.server.serverpb.EventsResponse.Event$Properties=} [properties] Properties to set
                 */
                class Event implements cockroach.server.serverpb.EventsResponse.Event$Properties {

                    /**
                     * Constructs a new Event.
                     * @exports cockroach.server.serverpb.EventsResponse.Event
                     * @implements cockroach.server.serverpb.EventsResponse.Event$Properties
                     * @constructor
                     * @param {cockroach.server.serverpb.EventsResponse.Event$Properties=} [properties] Properties to set
                     */
                    constructor(properties?: cockroach.server.serverpb.EventsResponse.Event$Properties);

                    /**
                     * @type {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties|undefined}
                     */
                    public timestamp?: cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties;

                    /**
                     * @type {string|undefined}
                     */
                    public event_type?: string;

                    /**
                     * @type {Long|undefined}
                     */
                    public target_id?: Long;

                    /**
                     * @type {Long|undefined}
                     */
                    public reporting_id?: Long;

                    /**
                     * @type {string|undefined}
                     */
                    public info?: string;

                    /**
                     * @type {Uint8Array|undefined}
                     */
                    public unique_id?: Uint8Array;

                    /**
                     * Creates a new Event instance using the specified properties.
                     * @param {cockroach.server.serverpb.EventsResponse.Event$Properties=} [properties] Properties to set
                     * @returns {cockroach.server.serverpb.EventsResponse.Event} Event instance
                     */
                    public static create(properties?: cockroach.server.serverpb.EventsResponse.Event$Properties): cockroach.server.serverpb.EventsResponse.Event;

                    /**
                     * Encodes the specified Event message. Does not implicitly {@link cockroach.server.serverpb.EventsResponse.Event.verify|verify} messages.
                     * @param {cockroach.server.serverpb.EventsResponse.Event$Properties} message Event message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encode(message: cockroach.server.serverpb.EventsResponse.Event$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Encodes the specified Event message, length delimited. Does not implicitly {@link cockroach.server.serverpb.EventsResponse.Event.verify|verify} messages.
                     * @param {cockroach.server.serverpb.EventsResponse.Event$Properties} message Event message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encodeDelimited(message: cockroach.server.serverpb.EventsResponse.Event$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Decodes an Event message from the specified reader or buffer.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @param {number} [length] Message length if known beforehand
                     * @returns {cockroach.server.serverpb.EventsResponse.Event} Event
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): cockroach.server.serverpb.EventsResponse.Event;

                    /**
                     * Decodes an Event message from the specified reader or buffer, length delimited.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @returns {cockroach.server.serverpb.EventsResponse.Event} Event
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): cockroach.server.serverpb.EventsResponse.Event;

                    /**
                     * Verifies an Event message.
                     * @param {Object.<string,*>} message Plain object to verify
                     * @returns {?string} `null` if valid, otherwise the reason why it is not
                     */
                    public static verify(message: { [k: string]: any }): string;

                    /**
                     * Creates an Event message from a plain object. Also converts values to their respective internal types.
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.EventsResponse.Event} Event
                     */
                    public static fromObject(object: { [k: string]: any }): cockroach.server.serverpb.EventsResponse.Event;

                    /**
                     * Creates an Event message from a plain object. Also converts values to their respective internal types.
                     * This is an alias of {@link cockroach.server.serverpb.EventsResponse.Event.fromObject}.
                     * @function
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.EventsResponse.Event} Event
                     */
                    public static from(object: { [k: string]: any }): cockroach.server.serverpb.EventsResponse.Event;

                    /**
                     * Creates a plain object from an Event message. Also converts values to other types if specified.
                     * @param {cockroach.server.serverpb.EventsResponse.Event} message Event
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public static toObject(message: cockroach.server.serverpb.EventsResponse.Event, options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Creates a plain object from this Event message. Also converts values to other types if specified.
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public toObject(options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Converts this Event to JSON.
                     * @returns {Object.<string,*>} JSON object
                     */
                    public toJSON(): { [k: string]: any };
                }

                namespace Event {

                    /**
                     * Properties of a Timestamp.
                     * @typedef cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties
                     * @type Object
                     * @property {Long} [sec] Timestamp sec.
                     * @property {number} [nsec] Timestamp nsec.
                     */
                    type Timestamp$Properties = {
                        sec?: Long;
                        nsec?: number;
                    };

                    /**
                     * Constructs a new Timestamp.
                     * @exports cockroach.server.serverpb.EventsResponse.Event.Timestamp
                     * @implements cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties
                     * @constructor
                     * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties=} [properties] Properties to set
                     */
                    class Timestamp implements cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties {

                        /**
                         * Constructs a new Timestamp.
                         * @exports cockroach.server.serverpb.EventsResponse.Event.Timestamp
                         * @implements cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties
                         * @constructor
                         * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties=} [properties] Properties to set
                         */
                        constructor(properties?: cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties);

                        /**
                         * @type {Long|undefined}
                         */
                        public sec?: Long;

                        /**
                         * @type {number|undefined}
                         */
                        public nsec?: number;

                        /**
                         * Creates a new Timestamp instance using the specified properties.
                         * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties=} [properties] Properties to set
                         * @returns {cockroach.server.serverpb.EventsResponse.Event.Timestamp} Timestamp instance
                         */
                        public static create(properties?: cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties): cockroach.server.serverpb.EventsResponse.Event.Timestamp;

                        /**
                         * Encodes the specified Timestamp message. Does not implicitly {@link cockroach.server.serverpb.EventsResponse.Event.Timestamp.verify|verify} messages.
                         * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties} message Timestamp message or plain object to encode
                         * @param {$protobuf.Writer} [writer] Writer to encode to
                         * @returns {$protobuf.Writer} Writer
                         */
                        public static encode(message: cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                        /**
                         * Encodes the specified Timestamp message, length delimited. Does not implicitly {@link cockroach.server.serverpb.EventsResponse.Event.Timestamp.verify|verify} messages.
                         * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties} message Timestamp message or plain object to encode
                         * @param {$protobuf.Writer} [writer] Writer to encode to
                         * @returns {$protobuf.Writer} Writer
                         */
                        public static encodeDelimited(message: cockroach.server.serverpb.EventsResponse.Event.Timestamp$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                        /**
                         * Decodes a Timestamp message from the specified reader or buffer.
                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                         * @param {number} [length] Message length if known beforehand
                         * @returns {cockroach.server.serverpb.EventsResponse.Event.Timestamp} Timestamp
                         * @throws {Error} If the payload is not a reader or valid buffer
                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
                         */
                        public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): cockroach.server.serverpb.EventsResponse.Event.Timestamp;

                        /**
                         * Decodes a Timestamp message from the specified reader or buffer, length delimited.
                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                         * @returns {cockroach.server.serverpb.EventsResponse.Event.Timestamp} Timestamp
                         * @throws {Error} If the payload is not a reader or valid buffer
                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
                         */
                        public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): cockroach.server.serverpb.EventsResponse.Event.Timestamp;

                        /**
                         * Verifies a Timestamp message.
                         * @param {Object.<string,*>} message Plain object to verify
                         * @returns {?string} `null` if valid, otherwise the reason why it is not
                         */
                        public static verify(message: { [k: string]: any }): string;

                        /**
                         * Creates a Timestamp message from a plain object. Also converts values to their respective internal types.
                         * @param {Object.<string,*>} object Plain object
                         * @returns {cockroach.server.serverpb.EventsResponse.Event.Timestamp} Timestamp
                         */
                        public static fromObject(object: { [k: string]: any }): cockroach.server.serverpb.EventsResponse.Event.Timestamp;

                        /**
                         * Creates a Timestamp message from a plain object. Also converts values to their respective internal types.
                         * This is an alias of {@link cockroach.server.serverpb.EventsResponse.Event.Timestamp.fromObject}.
                         * @function
                         * @param {Object.<string,*>} object Plain object
                         * @returns {cockroach.server.serverpb.EventsResponse.Event.Timestamp} Timestamp
                         */
                        public static from(object: { [k: string]: any }): cockroach.server.serverpb.EventsResponse.Event.Timestamp;

                        /**
                         * Creates a plain object from a Timestamp message. Also converts values to other types if specified.
                         * @param {cockroach.server.serverpb.EventsResponse.Event.Timestamp} message Timestamp
                         * @param {$protobuf.ConversionOptions} [options] Conversion options
                         * @returns {Object.<string,*>} Plain object
                         */
                        public static toObject(message: cockroach.server.serverpb.EventsResponse.Event.Timestamp, options?: $protobuf.ConversionOptions): { [k: string]: any };

                        /**
                         * Creates a plain object from this Timestamp message. Also converts values to other types if specified.
                         * @param {$protobuf.ConversionOptions} [options] Conversion options
                         * @returns {Object.<string,*>} Plain object
                         */
                        public toObject(options?: $protobuf.ConversionOptions): { [k: string]: any };

                        /**
                         * Converts this Timestamp to JSON.
                         * @returns {Object.<string,*>} JSON object
                         */
                        public toJSON(): { [k: string]: any };
                    }
                }
            }

Given the proto:

syntax = "proto3";
package cockroach.server.serverpb;
option go_package = "serverpb";

// GetUIDataResponse contains the requested values and the times at which
// the values were last updated.
message GetUIDataResponse {
  // Timestamp is embedded in each place it's used, because proto3 defines a
  // built-in Timestamp message that we can't use, because gogoprotobuf doesn't
  // support all proto3 protobuf types yet. See gogoprotobuf issue #113.
  message Timestamp {
    // The time in seconds since, January 1, 1970 UTC (Unix time).
    int64 sec = 1;
    // nsec specifies a non-negative nanosecond offset within sec.
    // It must be in the range [0, 999999999].
    uint32 nsec = 2;
  }

  message Value {
    // value is the value of the requested key.
    bytes value = 1;

    // last_updated is the time at which the value was last updated.
    Timestamp last_updated = 2 [(gogoproto.nullable) = false];
  }

  // key_values maps keys to their retrieved values. If this doesn't contain a
  // a requested key, that key was not found.
  map<string, Value> key_values = 1 [(gogoproto.nullable) = false];
}

Value$Properties below has last_updated?: any;:

            namespace GetUIDataResponse {

                /**
                 * Properties of a Timestamp.
                 * @typedef cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties
                 * @type Object
                 * @property {Long} [sec] Timestamp sec.
                 * @property {number} [nsec] Timestamp nsec.
                 */
                type Timestamp$Properties = {
                    sec?: Long;
                    nsec?: number;
                };

                /**
                 * Constructs a new Timestamp.
                 * @exports cockroach.server.serverpb.GetUIDataResponse.Timestamp
                 * @implements cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties
                 * @constructor
                 * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties=} [properties] Properties to set
                 */
                class Timestamp implements cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties {

                    /**
                     * Constructs a new Timestamp.
                     * @exports cockroach.server.serverpb.GetUIDataResponse.Timestamp
                     * @implements cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties
                     * @constructor
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties=} [properties] Properties to set
                     */
                    constructor(properties?: cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties);

                    /**
                     * @type {Long|undefined}
                     */
                    public sec?: Long;

                    /**
                     * @type {number|undefined}
                     */
                    public nsec?: number;

                    /**
                     * Creates a new Timestamp instance using the specified properties.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties=} [properties] Properties to set
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Timestamp} Timestamp instance
                     */
                    public static create(properties?: cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties): cockroach.server.serverpb.GetUIDataResponse.Timestamp;

                    /**
                     * Encodes the specified Timestamp message. Does not implicitly {@link cockroach.server.serverpb.GetUIDataResponse.Timestamp.verify|verify} messages.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties} message Timestamp message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encode(message: cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Encodes the specified Timestamp message, length delimited. Does not implicitly {@link cockroach.server.serverpb.GetUIDataResponse.Timestamp.verify|verify} messages.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties} message Timestamp message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encodeDelimited(message: cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Decodes a Timestamp message from the specified reader or buffer.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @param {number} [length] Message length if known beforehand
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Timestamp} Timestamp
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): cockroach.server.serverpb.GetUIDataResponse.Timestamp;

                    /**
                     * Decodes a Timestamp message from the specified reader or buffer, length delimited.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Timestamp} Timestamp
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): cockroach.server.serverpb.GetUIDataResponse.Timestamp;

                    /**
                     * Verifies a Timestamp message.
                     * @param {Object.<string,*>} message Plain object to verify
                     * @returns {?string} `null` if valid, otherwise the reason why it is not
                     */
                    public static verify(message: { [k: string]: any }): string;

                    /**
                     * Creates a Timestamp message from a plain object. Also converts values to their respective internal types.
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Timestamp} Timestamp
                     */
                    public static fromObject(object: { [k: string]: any }): cockroach.server.serverpb.GetUIDataResponse.Timestamp;

                    /**
                     * Creates a Timestamp message from a plain object. Also converts values to their respective internal types.
                     * This is an alias of {@link cockroach.server.serverpb.GetUIDataResponse.Timestamp.fromObject}.
                     * @function
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Timestamp} Timestamp
                     */
                    public static from(object: { [k: string]: any }): cockroach.server.serverpb.GetUIDataResponse.Timestamp;

                    /**
                     * Creates a plain object from a Timestamp message. Also converts values to other types if specified.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Timestamp} message Timestamp
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public static toObject(message: cockroach.server.serverpb.GetUIDataResponse.Timestamp, options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Creates a plain object from this Timestamp message. Also converts values to other types if specified.
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public toObject(options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Converts this Timestamp to JSON.
                     * @returns {Object.<string,*>} JSON object
                     */
                    public toJSON(): { [k: string]: any };
                }

                /**
                 * Properties of a Value.
                 * @typedef cockroach.server.serverpb.GetUIDataResponse.Value$Properties
                 * @type Object
                 * @property {Uint8Array} [value] Value value.
                 * @property {*} [last_updated] Value last_updated.
                 */
                type Value$Properties = {
                    value?: Uint8Array;
                    last_updated?: any;
                };

                /**
                 * Constructs a new Value.
                 * @exports cockroach.server.serverpb.GetUIDataResponse.Value
                 * @implements cockroach.server.serverpb.GetUIDataResponse.Value$Properties
                 * @constructor
                 * @param {cockroach.server.serverpb.GetUIDataResponse.Value$Properties=} [properties] Properties to set
                 */
                class Value implements cockroach.server.serverpb.GetUIDataResponse.Value$Properties {

                    /**
                     * Constructs a new Value.
                     * @exports cockroach.server.serverpb.GetUIDataResponse.Value
                     * @implements cockroach.server.serverpb.GetUIDataResponse.Value$Properties
                     * @constructor
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Value$Properties=} [properties] Properties to set
                     */
                    constructor(properties?: cockroach.server.serverpb.GetUIDataResponse.Value$Properties);

                    /**
                     * @type {Uint8Array|undefined}
                     */
                    public value?: Uint8Array;

                    /**
                     * @type {cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties|undefined}
                     */
                    public last_updated?: cockroach.server.serverpb.GetUIDataResponse.Timestamp$Properties;

                    /**
                     * Creates a new Value instance using the specified properties.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Value$Properties=} [properties] Properties to set
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Value} Value instance
                     */
                    public static create(properties?: cockroach.server.serverpb.GetUIDataResponse.Value$Properties): cockroach.server.serverpb.GetUIDataResponse.Value;

                    /**
                     * Encodes the specified Value message. Does not implicitly {@link cockroach.server.serverpb.GetUIDataResponse.Value.verify|verify} messages.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Value$Properties} message Value message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encode(message: cockroach.server.serverpb.GetUIDataResponse.Value$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Encodes the specified Value message, length delimited. Does not implicitly {@link cockroach.server.serverpb.GetUIDataResponse.Value.verify|verify} messages.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Value$Properties} message Value message or plain object to encode
                     * @param {$protobuf.Writer} [writer] Writer to encode to
                     * @returns {$protobuf.Writer} Writer
                     */
                    public static encodeDelimited(message: cockroach.server.serverpb.GetUIDataResponse.Value$Properties, writer?: $protobuf.Writer): $protobuf.Writer;

                    /**
                     * Decodes a Value message from the specified reader or buffer.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @param {number} [length] Message length if known beforehand
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Value} Value
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): cockroach.server.serverpb.GetUIDataResponse.Value;

                    /**
                     * Decodes a Value message from the specified reader or buffer, length delimited.
                     * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Value} Value
                     * @throws {Error} If the payload is not a reader or valid buffer
                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
                     */
                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): cockroach.server.serverpb.GetUIDataResponse.Value;

                    /**
                     * Verifies a Value message.
                     * @param {Object.<string,*>} message Plain object to verify
                     * @returns {?string} `null` if valid, otherwise the reason why it is not
                     */
                    public static verify(message: { [k: string]: any }): string;

                    /**
                     * Creates a Value message from a plain object. Also converts values to their respective internal types.
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Value} Value
                     */
                    public static fromObject(object: { [k: string]: any }): cockroach.server.serverpb.GetUIDataResponse.Value;

                    /**
                     * Creates a Value message from a plain object. Also converts values to their respective internal types.
                     * This is an alias of {@link cockroach.server.serverpb.GetUIDataResponse.Value.fromObject}.
                     * @function
                     * @param {Object.<string,*>} object Plain object
                     * @returns {cockroach.server.serverpb.GetUIDataResponse.Value} Value
                     */
                    public static from(object: { [k: string]: any }): cockroach.server.serverpb.GetUIDataResponse.Value;

                    /**
                     * Creates a plain object from a Value message. Also converts values to other types if specified.
                     * @param {cockroach.server.serverpb.GetUIDataResponse.Value} message Value
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public static toObject(message: cockroach.server.serverpb.GetUIDataResponse.Value, options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Creates a plain object from this Value message. Also converts values to other types if specified.
                     * @param {$protobuf.ConversionOptions} [options] Conversion options
                     * @returns {Object.<string,*>} Plain object
                     */
                    public toObject(options?: $protobuf.ConversionOptions): { [k: string]: any };

                    /**
                     * Converts this Value to JSON.
                     * @returns {Object.<string,*>} JSON object
                     */
                    public toJSON(): { [k: string]: any };
                }
            }

[tamird]

Your change seems to have fixed this issue, but also has introduced a new one. This is the diff (note that a bunch of implements Foo$Properties have been lost): https://gist.github.com/tamird/e608926392befd0b6dc51e879c96ac15.

[dcodeIO]

The diff looks good to me. Implements is gone / properties are (documented) on classes because of #723 - but it should still properly typecheck because class instances still satisfy the type.

[tamird]

Ah, OK.