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