Boolean input type error when passing to invoke or passthrough

[TinaNikou]

Came across this error when migrating the 'Text Generator' (./packages/breadboard-web/src/boards/text-generator.ts) board to the build API.

The useStreaming input is boolean type, defaulting to false.

const useStreaming = input({
  type: "boolean",
  default: false,
});

const invoker = invoke({
  $board: switchModel.outputs.path,
  text,
  useStreaming
});

const passer = passthrough({
  useStreaming
});

I get the following error when passing it into the invoke or passthrough nodes:
Type 'InputWithDefault<boolean>' is not assignable to type '(InputWithDefault<boolean> & string) | (InputWithDefault<boolean> & number) | (InputWithDefault<boolean> & false) | ... 27 more ... | (InputWithDefault<...> & Convergence<...>)'. Type 'InputWithDefault<boolean>' is not assignable to type '(InputWithDefault<boolean> & string) | (InputWithDefault<boolean> & number) | (InputWithDefault<boolean> & false) | ... 23 more ... | (InputWithDefault<...> & Convergence<...>)'. Type 'InputWithDefault<boolean>' is not assignable to type 'InputWithDefault<boolean> & Convergence<{ [K: string]: JsonSerializable; }>'. Type 'InputWithDefault<boolean>' is missing the following properties from type 'Convergence<{ [K: string]: JsonSerializable; }>': __isConvergence, portsts(2322)

Full code example here:

import { board, enumeration, input, output } from "@breadboard-ai/build";
import { invoke, code, passthrough } from "@google-labs/core-kit";

const text = input({ type: "string" });

const MODEL = input({ type: enumeration("Gemini Pro", "GPT 3.5 Turbo"), examples: ["Gemini Pro"] });

const switchModel = code({ MODEL }, { path: "string" }, ({ MODEL }) => {
    const models: Record<string, string> = { "Gemini Pro": "gemini-generator.json", "GPT 3.5 Turbo": "openai-gpt-35-turbo.json" };
    const path = models[MODEL];
    if (!path) throw new Error(`Unsupported model: ${MODEL}`);
    return { path };
  }
);

const useStreaming = input({
  type: "boolean",
  default: false,
});

const invoker = invoke({
  $board: switchModel.outputs.path,
  text,
  useStreaming
});

const passer = passthrough({
  useStreaming
});

const textOutput = output(invoker.unsafeOutput("text"));
const streamOutput = output(invoker.unsafeOutput("stream"));
const passthroughOutput = output(passer.outputs.useStreaming);

export default board({
  inputs: { text, useStreaming, MODEL },
  outputs: { textOutput, streamOutput, passthroughOutput }
});