message: make command public for testing beta
diff: @@ -10,6 +10,7 @@ import { DocumentNode } from "graphql";
  import { ClientCommand } from "../../Command";
  +// XXX this is duplicated code
  const manifestOperationHash = (str: string): string =>
  createHash("sha256")
  .update(str)
  @@ -27,7 +28,7 @@ export default class ServicePush extends ClientCommand {
  ...ClientCommand.flags
  };
  // not a public feature for now
  - static hidden = true;
  + // static hidden = true;
  static args = [
  {
  