MemGPT/letta/helpers/message_helper.py

45 lines
1.7 KiB
Python

from letta import system
from letta.schemas.enums import MessageRole
from letta.schemas.letta_message_content import TextContent
from letta.schemas.message import Message, MessageCreate
def prepare_input_message_create(
message: MessageCreate,
agent_id: str,
wrap_user_message: bool = True,
wrap_system_message: bool = True,
) -> Message:
"""Converts a MessageCreate object into a Message object, applying wrapping if needed."""
# TODO: This seems like extra boilerplate with little benefit
assert isinstance(message, MessageCreate)
# Extract message content
if isinstance(message.content, str):
message_content = message.content
elif message.content and len(message.content) > 0 and isinstance(message.content[0], TextContent):
message_content = message.content[0].text
else:
raise ValueError("Message content is empty or invalid")
# Apply wrapping if needed
if message.role == MessageRole.user and wrap_user_message:
message_content = system.package_user_message(user_message=message_content)
elif message.role == MessageRole.system and wrap_system_message:
message_content = system.package_system_message(system_message=message_content)
elif message.role not in {MessageRole.user, MessageRole.system}:
raise ValueError(f"Invalid message role: {message.role}")
return Message(
agent_id=agent_id,
role=message.role,
content=[TextContent(text=message_content)] if message_content else [],
name=message.name,
model=None, # assigned later?
tool_calls=None, # irrelevant
tool_call_id=None,
otid=message.otid,
sender_id=message.sender_id,
group_id=message.group_id,
)