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featu: support passing "extra body" throught to providers

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# What does this PR do?
Allows passing through extra_body parameters to inference providers.


closes #2720

## Test Plan
CI and added new test
This commit is contained in:
Eric Huang 2025-10-10 14:05:16 -07:00
parent cb7fb0705b
commit d7b57a8dd2
4 changed files with 107 additions and 20 deletions
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15
llama_stack/providers/utils/inference/openai_mixin.py
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@ -228,15 +228,6 @@ class OpenAIMixin(NeedsRequestProviderData, ABC, BaseModel):
"""
Direct OpenAI completion API call.
"""
# Handle parameters that are not supported by OpenAI API, but may be by the provider
# prompt_logprobs is supported by vLLM
# guided_choice is supported by vLLM
# TODO: test coverage
extra_body: dict[str, Any] = {}
if params.prompt_logprobs is not None and params.prompt_logprobs >= 0:
extra_body["prompt_logprobs"] = params.prompt_logprobs
if params.guided_choice:
extra_body["guided_choice"] = params.guided_choice
# TODO: fix openai_completion to return type compatible with OpenAI's API response
completion_kwargs = await prepare_openai_completion_params(
@ -259,7 +250,9 @@ class OpenAIMixin(NeedsRequestProviderData, ABC, BaseModel):
user=params.user,
suffix=params.suffix,
)
resp = await self.client.completions.create(**completion_kwargs, extra_body=extra_body)
if extra_body := dict(params.__pydantic_extra__ or {}):
completion_kwargs["extra_body"] = extra_body
resp = await self.client.completions.create(**completion_kwargs)
return await self._maybe_overwrite_id(resp, params.stream) # type: ignore[no-any-return]
@ -316,6 +309,8 @@ class OpenAIMixin(NeedsRequestProviderData, ABC, BaseModel):
user=params.user,
)
if extra_body := dict(params.__pydantic_extra__ or {}):
request_params["extra_body"] = extra_body
resp = await self.client.chat.completions.create(**request_params)
return await self._maybe_overwrite_id(resp, params.stream) # type: ignore[no-any-return]