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"""
Translate from OpenAI's `/v1/chat/completions` to Perplexity's `/v1/chat/completions`
"""
from typing import Optional, Tuple
from litellm.secret_managers.main import get_secret_str
from ...openai.chat.gpt_transformation import OpenAIGPTConfig
class PerplexityChatConfig(OpenAIGPTConfig):
def _get_openai_compatible_provider_info(
self, api_base: Optional[str], api_key: Optional[str]
) -> Tuple[Optional[str], Optional[str]]:
api_base = api_base or get_secret_str("PERPLEXITY_API_BASE") or "https://api.perplexity.ai" # type: ignore
dynamic_api_key = (
api_key
or get_secret_str("PERPLEXITYAI_API_KEY")
or get_secret_str("PERPLEXITY_API_KEY")
)
return api_base, dynamic_api_key
def get_supported_openai_params(self, model: str) -> list:
"""
Perplexity supports a subset of OpenAI params
Ref: https://docs.perplexity.ai/api-reference/chat-completions
Eg. Perplexity does not support tools, tool_choice, function_call, functions, etc.
"""
return [
"frequency_penalty",
"max_tokens",
"max_completion_tokens",
"presence_penalty",
"response_format",
"stream",
"temperature",
"top_p",
"max_retries",
"extra_headers",
]
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