ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter9/browser-use-rpa/browser-use/browser_use/llm/openrouter/serializer.py

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+from openai.types.chat import ChatCompletionMessageParam
+
+from browser_use.llm.messages import BaseMessage
+from browser_use.llm.openai.serializer import OpenAIMessageSerializer
+
+
+class OpenRouterMessageSerializer:
+	"""
+	Serializer for converting between custom message types and OpenRouter message formats.
+
+	OpenRouter uses the OpenAI-compatible API, so we can reuse the OpenAI serializer.
+	"""
+
+	@staticmethod
+	def serialize_messages(messages: list[BaseMessage]) -> list[ChatCompletionMessageParam]:
+		"""
+		Serialize a list of browser_use messages to OpenRouter-compatible messages.
+
+		Args:
+		    messages: List of browser_use messages
+
+		Returns:
+		    List of OpenRouter-compatible messages (identical to OpenAI format)
+		"""
+		# OpenRouter uses the same message format as OpenAI
+		return OpenAIMessageSerializer.serialize_messages(messages)