Return type of client.textToSpeech.convert is incorrect.

[dyerw]

Calling and awaiting the client.textToSpeech.convert infers the type stream.Readable. However logging the runtime value (at least in Node >= 18) shows the value is actually:

Node18UniversalStreamWrapper {
  readableStream: ReadableStream { locked: true, state: 'readable', supportsBYOB: true },
  reader: ReadableStreamDefaultReader {
    stream: ReadableStream { locked: true, state: 'readable', supportsBYOB: true },
    readRequests: 0,
    close: Promise { <pending> }
  },
  events: {
    data: [],
    end: [],
    error: [],
    readable: [],
    close: [],
    pause: [],
    resume: []
  },
  paused: false,
  resumeCallback: null,
  encoding: null
}

Which does not type check against the Readable class as defined by @types/node, for instance:

        /**
         * Is `true` if it is safe to call {@link read}, which means
         * the stream has not been destroyed or emitted `'error'` or `'end'`.
         * @since v11.4.0
         */
        readable: boolean;

is undefined.

[dsinghvi]

@dyerw great call -- i will take a look at this today

[johannesfritsch]

Same here

[louisjoecodes]

Hey @dsinghvi, could you advise on the next steps to ensure that the .convert response type is generated as a web-standard ReadableStream? Would this require a change on the Fern side of things, or is there something we can adjust in our OpenAPI definition or SDK generation process to fix it?

Any guidance would be greatly appreciated!