Setting `x-stainless-helper-method` to null in defaultHeaders gets ignored

[shivambudhia]

Confirm this is a Node library issue and not an underlying OpenAI API issue

• This is an issue with the Node library

Describe the bug

Hardcoding the header in the function declaration is causing the defaultHeader override to not work.

openai-node/src/lib/ChatCompletionStreamingRunner.ts

Line 56 in bc9f15f

static runTools<T extends (string | object)[], ParsedT = null>(

openai-node/src/lib/ChatCompletionRunner.ts

Line 52 in bc9f15f

static runTools<ParsedT>(

To Reproduce

1. Create a new OpenAI instance
2. Set the defaultHeaders to include 'x-stainless-retry-count': null
3. See the header being included nonetheless

Code snippets

new OpenAI({
        baseURL: baseURL,
        apiKey: '',
        defaultHeaders: {
          'x-stainless-os': null,
          'x-stainless-runtime': null,
          'x-stainless-arch': null,
          'x-stainless-lang': null,
          'x-stainless-helper-method': null,
          'x-stainless-timeout': null,
          'x-stainless-package-version': null,
          'x-stainless-runtime-version': null,
          'x-stainless-retry-count': null,
        },
      }),

OS

macOS

Node version

v20.17.0

Library version

openai@4.92.1: