message: Add IS_LOCAL environment variable
diff: @@ -206,6 +206,7 @@ export class Server {
  ...opts.env,
  ...cmd.env,
  AWS_LAMBDA_RUNTIME_API: api,
  + IS_LOCAL: "true",
  };
  logger.debug("Spawning", cmd.command);
  const proc = spawn(cmd.command, cmd.args, {
  