Merge pull request#40 from letschers/main[Chore!] Add error verification on callback from stream

Merge pull request#39 from zia-ai/feat/rate-limitsExpose rate limiting headers to responses and errors

Merge pull request#38 from zia-ai/fix/openai-chat-completionsFix chat completion endpoints where no functions are being defined

Merge pull request#36 from snehalchennuru/mainadd support for function calling

Merge pull request#35 from yorinasub17/features/moderationsAdd support for Moderations API endpoint

Merge pull request#33 from yorinasub17/bug/chat-completion-temperatu……rezeroSwitch to using pointers for omitempty number fields in ChatCompletionRequest

Merge pull request#31 from bakks/mainAdd streaming chat completions

Merge pull request#30 from abatilo/mainfeat: Support Chat Completions API endpoint

Merge pull request#17 from thehappydinoa/patch-1Add text-embedding-ada-002 engine

Merge pull request#14 from letschers/add-token-usageReturn Token Usage on CompletionResponse