anthropic[minor]: add tool calling (#18554)

libs/experimental/langchain_experimental/llms/anthropic_functions.py

@@ -11,6 +11,7 @@ from langchain.schema import (
     ChatResult,
 )
 from langchain_community.chat_models.anthropic import ChatAnthropic
+from langchain_core._api.deprecation import deprecated
 from langchain_core.language_models import BaseChatModel
 from langchain_core.messages import (
     AIMessage,
@@ -123,6 +124,11 @@ def _destrip(tool_input: Any) -> Any:
         raise ValueError
 
 
+@deprecated(
+    since="0.0.54",
+    removal="0.2",
+    alternative_import="langchain_anthropic.experimental.ChatAnthropicTools",
+)
 class AnthropicFunctions(BaseChatModel):
     """Chat model for interacting with Anthropic functions."""