validate_environment() — langchain Function Reference

Architecture documentation for the validate_environment() function in chat_models.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

Entity Profile

LangChainCore→ LanguageModelBase→ validate_environment() — langchain Function Reference

Dependency Diagram

graph TD
  2e057500_4a6e_656b_a60a_9fb0417ec1d3["validate_environment()"]
  f3181e26_0568_4993_612c_5b8d73ad3c37["ChatDeepSeek"]
  2e057500_4a6e_656b_a60a_9fb0417ec1d3 -->|defined in| f3181e26_0568_4993_612c_5b8d73ad3c37
  style 2e057500_4a6e_656b_a60a_9fb0417ec1d3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/deepseek/langchain_deepseek/chat_models.py lines 217–248

    def validate_environment(self) -> Self:
        """Validate necessary environment vars and client params."""
        if self.api_base == DEFAULT_API_BASE and not (
            self.api_key and self.api_key.get_secret_value()
        ):
            msg = "If using default api base, DEEPSEEK_API_KEY must be set."
            raise ValueError(msg)
        client_params: dict = {
            k: v
            for k, v in {
                "api_key": self.api_key.get_secret_value() if self.api_key else None,
                "base_url": self.api_base,
                "timeout": self.request_timeout,
                "max_retries": self.max_retries,
                "default_headers": self.default_headers,
                "default_query": self.default_query,
            }.items()
            if v is not None
        }

        if not (self.client or None):
            sync_specific: dict = {"http_client": self.http_client}
            self.root_client = openai.OpenAI(**client_params, **sync_specific)
            self.client = self.root_client.chat.completions
        if not (self.async_client or None):
            async_specific: dict = {"http_client": self.http_async_client}
            self.root_async_client = openai.AsyncOpenAI(
                **client_params,
                **async_specific,
            )
            self.async_client = self.root_async_client.chat.completions
        return self