Allow passing any object in json schema in response format

[samarthpatil00]

Describe the change

• Changed type of Schema field in ChatCompletionResponseFormatJSONSchema from jsonschema.Definition to any. This will allow it to be more flexible and accept schemas from multiple sources rather than just the internal jsonschema package.
• Added integration test for the change.

Tests

• Integration test added

=== RUN   TestAPI
--- PASS: TestAPI (5.63s)
=== RUN   TestCompletionStream
--- PASS: TestCompletionStream (0.79s)
=== RUN   TestAPIError
--- PASS: TestAPIError (0.32s)
=== RUN   TestChatCompletionResponseFormat_JSONSchema
--- PASS: TestChatCompletionResponseFormat_JSONSchema (1.11s)
=== RUN   TestChatCompletionStructuredOutputsFunctionCalling
--- PASS: TestChatCompletionStructuredOutputsFunctionCalling (1.13s)
=== RUN   TestChatCompletionResponseFormat_JSONSchemaAsString
--- PASS: TestChatCompletionResponseFormat_JSONSchemaAsString (5.21s)
PASS
ok      command-line-arguments  14.684s

Issue: #829

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.00%. Comparing base (774fc9d) to head (3fa49d5).
Report is 45 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #831      +/-   ##
==========================================
+ Coverage   98.46%   99.00%   +0.54%     
==========================================
  Files          24       26       +2     
  Lines        1364     1410      +46     
==========================================
+ Hits         1343     1396      +53     
+ Misses         15        8       -7     
  Partials        6        6              

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[samarthpatil00]

@sashabaranov
Hi, can you please review this change, it is pretty straightforward

[newhook]

@sashabaranov Hi, can you please review this change, it is pretty straightforward

I just tested it locally and it works well.

[sashabaranov]

Hey @samarthpatil00 , we've just merged #819 with Schema improvements — please let me know if it works for you!

[samarthpatil00]

Thanks @sashabaranov , it is working now :)