The code changes in the `main.go` file update the Gemini adaptor to support custom response formats. It adds a `mimeTypeMap` variable to map response format types to MIME types. The `ConvertRequest` function now checks if the `ResponseFormat` field is provided in the request and sets the appropriate response MIME type and schema in the `geminiRequest` object.
* Update model.go
* Support Gemini tool_calls.
* Fix gemini tool calls (also keep support functions).
* Fixed the problem of arguments not being stringified.
Fix panic: candidate.Content.Parts out of range
