pub struct ChatCompletion {
  id : String
  choices : Array[ChatCompletionChoice]
  created : Int
  model : String
  usage : CompletionUsage?
}

pub struct ChatCompletionAssistantMessageParam {
  content : String?
  name : String?
  tool_calls : Array[ChatCompletionMessageToolCall]
}

pub struct ChatCompletionChoice {
  finish_reason : ChatCompletionChoiceFinishReason
  index : Int
  message : ChatCompletionMessage
}

pub enum ChatCompletionChoiceFinishReason {
  Stop
  Length
  ToolCalls
  ContentFilter
  FunctionCall
}

pub struct ChatCompletionMessage {
  content : String?
  tool_calls : Array[ChatCompletionMessageToolCall]
}

pub enum ChatCompletionMessageParam {
  System(ChatCompletionSystemMessageParam)
  User(ChatCompletionUserMessageParam)
  Assistant(ChatCompletionAssistantMessageParam)
  Tool(ChatCompletionToolMessageParam)
}

pub struct ChatCompletionMessageToolCall {
  id : String
  function : Function
}

pub struct ChatCompletionSystemMessageParam {
  content : String
  name : String?
}

pub struct ChatCompletionToolMessageParam {
  content : String
  tool_call_id : String
}

type ChatCompletionToolParam

pub struct ChatCompletionUserMessageParam {
  content : String
  name : String?
}

type Client

pub struct CompletionUsage {
  completion_tokens : Int
  prompt_tokens : Int
  total_tokens : Int
}

pub struct Function {
  arguments : String
  name : String
}

fn function_tool(name~ : String, description~ : String, parameters~ : Map[String, Json], strict? : Bool) -> ChatCompletionToolParam

fn system_message(content~ : String, name? : String) -> ChatCompletionMessageParam

fn tool_message(content~ : String, tool_call_id~ : String) -> ChatCompletionMessageParam

fn user_message(content~ : String, name? : String) -> ChatCompletionMessageParam