Image upload fix

[kaylieee]

Purpose

• Changed ConversationThreadClient so that old image files are kept on thread
• Change ConversationMessage and AsyncConversationMessage classes to support multiple FileMessage instances per instance
• Change max tokens default value to 1000
• Add contains_file_id method and remove contains_image_file_id from Conversation and AsyncConversation classes
• Fixed issue where image uploaded in chat is appended to every subsequent message
• Fixed issue where images uploaded with same file path would all be deleted
• Version updated to 0.4.4-alpha

Does this introduce a breaking change?

The file_message property of the Message and AsyncMessage classes has been changed to file_messages and now returns a list of FileMessage objects. To go through individual file messages you can iterate through file_messages.

The contains_image_file_id method has been removed from the Conversation and AsyncConversation classes. To check if a conversation contains any file with the specified file id, use the new contains_file_id method

[X] Yes
[ ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[X] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

  Use GUI

Other Information

• Please install new version azure_ai_assistant-0.4.4a1-py3-none-any.whl for middleware SDK from this release. See the README for installation details.