use gpui::SharedString;use language_model::{LanguageModelRequestMessage, MessageContent};use serde::{Deserialize, Serialize};use util::post_inc; #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Serialize, Deserialize)]pub struct ContextId(pub(crate) usize); impl ContextId {    pub fn post_inc(&mut self) -> Self {        Self(post_inc(&mut self.0))    }} /// Some context attached to a message in a thread.#[derive(Debug, Clone)]pub struct Context {    pub id: ContextId,    pub name: SharedString,    pub parent: Option<SharedString>,    pub tooltip: Option<SharedString>,    pub kind: ContextKind,    pub text: SharedString,} #[derive(Debug, Clone, PartialEq, Eq, Hash)]pub enum ContextKind {    File,    Directory,    FetchedUrl,    Thread,} pub fn attach_context_to_message(    message: &mut LanguageModelRequestMessage,    context: impl IntoIterator<Item = Context>,) {    let mut file_context = String::new();    let mut directory_context = String::new();    let mut fetch_context = String::new();    let mut thread_context = String::new();     for context in context.into_iter() {        match context.kind {            ContextKind::File { .. } => {                file_context.push_str(&context.text);                file_context.push('\n');            }            ContextKind::Directory => {                directory_context.push_str(&context.text);                directory_context.push('\n');            }            ContextKind::FetchedUrl => {                fetch_context.push_str(&context.name);                fetch_context.push('\n');                fetch_context.push_str(&context.text);                fetch_context.push('\n');            }            ContextKind::Thread => {                thread_context.push_str(&context.name);                thread_context.push('\n');                thread_context.push_str(&context.text);                thread_context.push('\n');            }        }    }     let mut context_text = String::new();    if !file_context.is_empty() {        context_text.push_str("The following files are available:\n");        context_text.push_str(&file_context);    }     if !directory_context.is_empty() {        context_text.push_str("The following directories are available:\n");        context_text.push_str(&directory_context);    }     if !fetch_context.is_empty() {        context_text.push_str("The following fetched results are available\n");        context_text.push_str(&fetch_context);    }     if !thread_context.is_empty() {        context_text.push_str("The following previous conversation threads are available\n");        context_text.push_str(&thread_context);    }     if !context_text.is_empty() {        message.content.push(MessageContent::Text(context_text));    }}