ChatMessage Content bugs introduced on 1.9 version

[jeffdapaz]

Hi,

Start from version 1.9, the property from ChatMessage class was modified from "string Content" to "IList ContentItems", but this change was introduced some bugs.

Looking on OpenAI API Reference, it's possible to see that "content" need to be a plain text, not an array:

But strangelly the requests are working with OpenAI and Azure. But if you try consume a local LLM based on OpenAI API pattern, overriding the base URL, the requests will not work.

Another problem that I faced it's particullary with Azure.

In some requests I am receiveing something like this as response:

data: {"id":"chatcmpl-8ujtoBAFitfLO0nl5Eenrep","object":"chat.completion.chunk","created":1708533496,"model":"gpt-35-turbo","choices":[{"finish_reason":"stop","index":0,"delta":{"content":null}}]}

Note that the "content" is null. When Azure returns this the exception "Object Not Referenced" was launched by the package at OpenAI_API.Chat.ChatMessage.set_ContentItems(IList`1 value).

Rollback the package to the 1.8 version on my project resolved all these problems, but I am creating this issue to notify you about them.

Thank you.