[Bug]: image_edit() function returns APIConnectionError with litellm_proxy

[ishaan-jaff]

[Bug]: image_edit() function returns APIConnectionError with litellm_proxy
The image_edit() function in LiteLLM fails with an APIConnectionError when calling through the proxy, even when API key and base URL are provided explicitly.

1. Use the image_edit() function from LiteLLM.
2. Set the model to a valid image model ID.
3. Provide image files, a prompt, and other parameters.
4. Set api_base to the proxy URL and api_key to the proxy API key.
5. Call the function and observe the error.

The error message indicates that image editing is not supported when using litellm_proxy. The image_generation function works when API base and key are set explicitly, but image_edit() does not. This suggests a possible limitation or bug with proxy support for image editing in LiteLLM.

[ishaan-jaff]

Code to repro this

new_images = litellm_image_edit(
            model=full_model_id (gpt-image-1),
            image=image_files,
            prompt=prompt,
            n=n,
            api_base=get_litellm_proxy_url(), 
            api_key=LITELLM_PROXY_API_KEY, # I did explicitly add these even though the global config flag is set earlier in the file as litellm.api_key = LITELLM_PROXY_API_KEY, that didn't work for image generation
        )

litellm.APIConnectionError: APIConnectionError: Litellm_proxyException - image edit is not supported for litellm_proxy
ValueError: image edit is not supported for litellm_prox