Remove fastchat dependency

requirements.txt

@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: Apache-2.0
-FastChat
 GitPython>=3.1.42,<4.0.0
 shortuuid
 openai>=1.13.3,<2.0.0

src/instructlab/eval/mt_bench_answers.py

@@ -6,8 +6,6 @@
 import time
 
 # Third Party
-# TODO need to look into this dependency
-from fastchat.model.model_adapter import get_conversation_template  # type: ignore
 import shortuuid
 import tqdm
 
@@ -20,6 +18,7 @@
     load_questions,
     temperature_config,
 )
+from .mt_bench_model_adapter import get_conversation_template  # type: ignore
 
 logger = setup_logger(__name__)
 
@@ -61,7 +60,7 @@ def get_answer(
 
     choices = []
     for i in range(num_choices):
-        conv = get_conversation_template(model)
+        conv = get_conversation_template(model, "granite")
 
         turns = []
         for j in range(len(question["turns"])):

src/instructlab/eval/mt_bench_common.py

@@ -13,15 +13,15 @@
 import time
 
 # Third Party
-from fastchat import conversation
-from fastchat.model.model_adapter import get_conversation_template  # type: ignore
 import openai
 
 # First Party
 from instructlab.eval import exceptions
 
 # Local
 from .logger_config import setup_logger
+from .mt_bench_conversation import Conversation
+from .mt_bench_model_adapter import get_conversation_template
 
 logger = setup_logger(__name__)
 
@@ -158,7 +158,7 @@ def run_judge_single(
     rating = -1
 
     system_prompt = judge.prompt_template["system_prompt"]
-    conv = get_conversation_template(model)
+    conv = get_conversation_template(model, "mixtral")
     conv.set_system_message(system_prompt)
     conv.append_message(conv.roles[0], user_prompt)
     conv.append_message(conv.roles[1], None)
@@ -268,9 +268,7 @@ class Message(TypedDict):
     role: str
 
 
-def _get_messages(
-    conv: conversation.Conversation, merge_system_user_message: bool
-) -> list[Message]:
+def _get_messages(conv: Conversation, merge_system_user_message: bool) -> list[Message]:
     messages = conv.to_openai_api_messages()
     if (
         (merge_system_user_message or conv.name == "mistral")
@@ -285,7 +283,7 @@ def _get_messages(
 def chat_completion_openai(
     openai_client,
     model,
-    conv: conversation.Conversation,
+    conv: Conversation,
     temperature,
     max_tokens,
     merge_system_user_message: bool = False,

src/instructlab/eval/mt_bench_conversation.py

@@ -0,0 +1,213 @@
+# SPDX-License-Identifier: Apache-2.0
+"""
+Conversation prompt templates.
+"""
+
+# Standard
+from enum import IntEnum, auto
+from typing import Dict, List, Tuple, Union
+import dataclasses
+
+
+class SeparatorStyle(IntEnum):
+    """Separator styles."""
+
+    ADD_COLON_SINGLE = auto()
+    ADD_COLON_TWO = auto()
+    ADD_COLON_SPACE_SINGLE = auto()
+    NO_COLON_SINGLE = auto()
+    NO_COLON_TWO = auto()
+    ADD_NEW_LINE_SINGLE = auto()
+    LLAMA2 = auto()
+    DEFAULT = auto()
+
+
+@dataclasses.dataclass
+class Conversation:
+    # pylint: disable=too-many-instance-attributes
+    """A class that manages prompt templates and keeps all conversation history."""
+
+    # The name of this template
+    name: str
+    # The template of the system prompt
+    system_template: str = "{system_message}"
+    # The system message
+    system_message: str = ""
+    # The names of two roles
+    roles: Tuple[str, str] = ("USER", "ASSISTANT")
+    # All messages. Each item is (role, message).
+    # Each message is either a string or a tuple of (string, List[image_url]).
+    messages: List[List[str | None]] = dataclasses.field(default_factory=list)
+    # The number of few shot examples
+    offset: int = 0
+    # The separator style and configurations
+    sep_style: SeparatorStyle = SeparatorStyle.ADD_COLON_SINGLE
+    sep: str | None = "\n"
+    sep2: str | None = None
+    # Stop criteria (the default one is EOS token)
+    stop_str: Union[str, List[str]] | None = None
+    # Stops generation if meeting any token in this list
+    stop_token_ids: List[int] | None = None
+
+    def set_system_message(self, system_message: str):
+        """Set the system message."""
+        self.system_message = system_message
+
+    def get_system_message(self):
+        """return the system message."""
+        return self.system_message
+
+    def append_message(self, role: str, message: str | None):
+        """Append a new message."""
+        self.messages.append([role, message])
+
+    def update_last_message(self, message: str):
+        """Update the last output.
+
+        The last message is typically set to be None when constructing the prompt,
+        so we need to update it in-place after getting the response from a model.
+        """
+        self.messages[-1][1] = message
+
+    def to_openai_api_messages(self):
+        """Convert the conversation to OpenAI chat completion format."""
+        if self.system_message == "":
+            ret = []
+        else:
+            ret = [{"role": "system", "content": self.system_message}]
+
+        for i, (_, msg) in enumerate(self.messages[self.offset :]):
+            if i % 2 == 0:
+                ret.append({"role": "user", "content": msg})
+            else:
+                if msg is not None:
+                    ret.append({"role": "assistant", "content": msg})
+        return ret
+
+    def copy(self):
+        return Conversation(
+            name=self.name,
+            system_template=self.system_template,
+            system_message=self.system_message,
+            roles=self.roles,
+            messages=[[x, y] for x, y in self.messages],
+            offset=self.offset,
+            sep_style=self.sep_style,
+            sep=self.sep,
+            sep2=self.sep2,
+            stop_str=self.stop_str,
+            stop_token_ids=self.stop_token_ids,
+        )
+
+    def dict(self):
+        return {
+            "template_name": self.name,
+            "system_message": self.system_message,
+            "roles": self.roles,
+            "messages": self.extract_text_from_messages(),
+            "offset": self.offset,
+        }
+
+
+# A global registry for all conversation templates
+conv_templates: Dict[str, Conversation] = {}
+
+
+def register_conv_template(template: Conversation, override: bool = False):
+    """Register a new conversation template."""
+    if not override:
+        assert (
+            template.name not in conv_templates
+        ), f"{template.name} has been registered."
+
+    conv_templates[template.name] = template
+
+
+def get_conv_template(name: str) -> Conversation:
+    """Get a conversation template."""
+    return conv_templates[name].copy()
+
+
+# An empty template for raw conversation.
+register_conv_template(
+    Conversation(
+        name="raw",
+        system_message="",
+        roles=("", ""),
+        sep_style=SeparatorStyle.NO_COLON_SINGLE,
+        sep="",
+    )
+)
+
+
+# api-based default template
+register_conv_template(
+    Conversation(
+        name="api_based_default",
+        system_message="",
+        roles=("user", "assistant"),
+        sep_style=SeparatorStyle.DEFAULT,
+        sep=None,
+    )
+)
+
+
+# ChatGPT default template
+register_conv_template(
+    Conversation(
+        name="chatgpt",
+        system_message="You are a helpful assistant.",
+        roles=("user", "assistant"),
+        sep_style=SeparatorStyle.DEFAULT,
+        sep=None,
+    )
+)
+
+# Mistral template
+# source: https://docs.mistral.ai/llm/mistral-instruct-v0.1#chat-template
+register_conv_template(
+    Conversation(
+        name="mistral",
+        system_template="[INST] {system_message}\n",
+        roles=("[INST]", "[/INST]"),
+        sep_style=SeparatorStyle.LLAMA2,
+        sep=" ",
+        sep2="</s>",
+    )
+)
+
+register_conv_template(
+    Conversation(
+        name="labrador-chat",
+        system_template="<|system|>\n{system_message}",
+        system_message="""You are Labrador, an AI language model developed by IBM DMF (Data Model Factory) Alignment Team. You are a cautious assistant. You carefully follow instructions. You are helpful and harmless and you follow ethical guidelines and promote positive behavior. You always respond to greetings (for example, hi, hello, g'day, morning, afternoon, evening, night, what's up, nice to meet you, sup, etc) with "Hello! I am Labrador, created by the IBM DMF Alignment Team. How can I help you today?". Please do not say anything else and do not start a conversation.""",
+        roles=("<|user|>", "<|assistant|>"),
+        sep_style=SeparatorStyle.ADD_NEW_LINE_SINGLE,
+        sep="\n",
+        stop_str="<|endoftext|>",
+    )
+)
+
+register_conv_template(
+    Conversation(
+        name="ibm-generic",
+        system_template="<|system|>\n{system_message}",
+        system_message="""You are an AI language model developed by IBM Research. You are a cautious assistant. You carefully follow instructions. You are helpful and harmless and you follow ethical guidelines and promote positive behavior.""",
+        roles=("<|user|>", "<|assistant|>"),
+        sep_style=SeparatorStyle.ADD_NEW_LINE_SINGLE,
+        sep="\n",
+        stop_str="<|endoftext|>",
+    )
+)
+
+register_conv_template(
+    Conversation(
+        name="granite-chat",
+        system_template="<|system|>\n{system_message}",
+        system_message="""You are Granite Chat, an AI language model developed by IBM. You are a cautious assistant. You carefully follow instructions. You are helpful and harmless and you follow ethical guidelines and promote positive behavior.""",
+        roles=("<|user|>", "<|assistant|>"),
+        sep_style=SeparatorStyle.ADD_NEW_LINE_SINGLE,
+        sep="\n",
+        stop_str="<|endoftext|>",
+    )
+)