refactor(rust): promote anthropic messages out of experimental_pass_through (#43269)

Co-authored-by: Yujong Lee <yujong@berri.ai>

litellm-rust/crates/core/src/messages/common_utils.rs

@@ -1,7 +1,7 @@
 use litellm_http::request::string_headers as shared_string_headers;
 pub(super) use litellm_http::request::truncate_error_body;
 use litellm_llms::{
-    anthropic::experimental_pass_through::messages::transformation::ANTHROPIC_MESSAGES_CONFIG,
+    anthropic::messages::transformation::ANTHROPIC_MESSAGES_CONFIG,
     azure_ai::anthropic::messages_transformation::AZURE_ANTHROPIC_MESSAGES_CONFIG,
     base_llm::anthropic_messages::transformation::BaseAnthropicMessagesConfig,
 };

litellm-rust/crates/core/src/messages/prepare.rs

@@ -5,7 +5,7 @@ use litellm_core_utils::{
     settings::Lookup,
 };
 use litellm_llms::{
-    anthropic::experimental_pass_through::messages::handler::shape_anthropic_messages_request,
+    anthropic::messages::handler::shape_anthropic_messages_request,
     base_llm::anthropic_messages::transformation::{
         BaseAnthropicMessagesConfig, MessagesTransformContext,
     },

litellm-rust/crates/llms/src/anthropic/batches/transformation.rs

@@ -5,7 +5,7 @@ use time::OffsetDateTime;
 use url::Url;
 
 use crate::{
-    anthropic::experimental_pass_through::messages::transformation::resolve_anthropic_api_base,
+    anthropic::messages::transformation::resolve_anthropic_api_base,
     base_llm::chat::transformation::Error,
 };
 

litellm-rust/crates/llms/src/anthropic/chat/handler.rs

@@ -7,7 +7,7 @@ use litellm_types::{
 use serde_json::Value;
 
 use crate::{
-    anthropic::experimental_pass_through::messages::streaming_iterator::{
+    anthropic::messages::streaming_iterator::{
         AnthropicContentBlock, AnthropicContentBlockDelta, AnthropicMessagesStreamEvent,
         AnthropicStreamUsage,
     },

litellm-rust/crates/llms/src/anthropic/chat/transformation.rs

@@ -11,9 +11,7 @@ use serde_json::{Map, Value, json};
 use crate::{
     anthropic::{
         ANTHROPIC_OAUTH_TOKEN_PREFIX,
-        experimental_pass_through::messages::transformation::{
-            complete_anthropic_url, resolve_anthropic_api_key,
-        },
+        messages::transformation::{complete_anthropic_url, resolve_anthropic_api_key},
     },
     base_llm::chat::transformation::{
         BaseConfig, Error, ProviderChatRequestData, ProviderChatResponseData, RequestAuth,

litellm-rust/crates/llms/src/anthropic/experimental_pass_through/mod.rs

@@ -1 +0,0 @@
-pub mod messages;

litellm-rust/crates/llms/src/anthropic/mod.rs

@@ -1,7 +1,8 @@
+pub mod common_utils;
+
 pub mod batches;
 pub mod chat;
-pub mod common_utils;
 pub mod count_tokens;
-pub mod experimental_pass_through;
+pub mod messages;
 
 pub const ANTHROPIC_OAUTH_TOKEN_PREFIX: &str = "sk-ant-oat";

litellm-rust/crates/llms/src/azure_ai/anthropic/messages_transformation.rs

@@ -6,7 +6,7 @@ use litellm_types::llms::anthropic_messages::{
 };
 
 use crate::{
-    anthropic::experimental_pass_through::messages::transformation::{
+    anthropic::messages::transformation::{
         ANTHROPIC_MESSAGES_CONFIG, AnthropicMessagesConfig, non_empty,
     },
     base_llm::{

litellm-rust/crates/llms/src/base_llm/anthropic_messages/transformation.rs

@@ -4,8 +4,7 @@ use litellm_types::llms::anthropic_messages::{
 };
 
 use crate::{
-    anthropic::experimental_pass_through::messages::thinking::ThinkingContext,
-    base_llm::chat::transformation::Error,
+    anthropic::messages::thinking::ThinkingContext, base_llm::chat::transformation::Error,
 };
 
 pub type Headers = Vec<(String, String)>;