no set method TS types for proto3 Map field

[luffigo123]

Hi everybody,
There is no set method of map filed on TS.

When a proto file has map field:
syntax = "proto3";

package example;

message Example
{
map<string, string> labels = 1;
}

It generates this TS definitions
export class Example extends jspb.Message {
getLabelsMap(): jspb.Map<string, string>;
clearLabelsMap(): void;

serializeBinary(): Uint8Array;
toObject(includeInstance?: boolean): Example.AsObject;
static toObject(includeInstance: boolean, msg: Example): Example.AsObject;
static extensions: {[key: number]: jspb.ExtensionFieldInfo<jspb.Message>};
static extensionsBinary: {[key: number]: jspb.ExtensionFieldBinaryInfo<jspb.Message>};
static serializeBinaryToWriter(message: Example, writer: jspb.BinaryWriter): void;
static deserializeBinary(bytes: Uint8Array): Example;
static deserializeBinaryFromReader(message: Example, reader: jspb.BinaryReader): Example;
}

export namespace Example {
export type AsObject = {
labelsMap: Array<[string, string]>,
}
}

Note: No setLablesMap() method, @jonny-improbable could you take a look about this issue?