Module completion 

Language model completion and conversation management

Contains:

• Client for managing LLM interactions
• Message history tracking
• Response extraction

Structs

Client

A client for managing interactions with a completion model, including conversation history, tooling, state management, and token tracking.

PromptBuilder

Builder for constructing and executing completion prompts

State

Extractor for state

TokenUsage

Tracks token usage statistics for model interactions

Enums

CompletionError

Errors that can happen during completion

ExtractionError

Errors related to response extraction from completions

Message

Messages exchanged with the completion model

StateError

Errors related to state management in the Client

Traits

CompletionModel

Core trait defining the interface for completion models

Extractor

Types that can be deserialized from model completion responses.

Functions

default_extractor_serializer

Generates a JSON schema serializer for extractor types

serialize_assistant

Serializes assistant messages with integrated tool call information

serialize_user

Serializes user messages, ignoring tool call responses