You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/zee/zee/src/components/buffer
    
    the code of the file until where you have to start completion: pub mod line_info;
pub mod status_bar;
pub mod textarea;

use std::{borrow::Cow, iter, path::PathBuf};
use zi::{
    components::text::{Text, TextAlign, TextProperties},
    prelude::*,
};

use zee_edit::{tree::EditTree, Direction};
use zee_grammar::Mode;

use self::{
    line_info::{LineInfo, Properties as LineInfoProperties},
    status_bar::{Properties as Statu
    
    fn ensure_cursor_in_view(&mut self) -> ShouldRender {
        let content = self.properties.content.upgrade();
        let current_line = content.char_to_line(self.properties.cursor.inner().range().start);
        let num_lines = self.frame.size.height.saturating_sub(1);
        if current_line < self.line_offset {
            self.line_offset = current_line;
            ShouldRender::Yes
        } else if current_line - self.line_offset > num_lines.saturating_sub(1) {
            self.line_offset = current_line + 1 - num_lines;
            ShouldRender::Yes
        } else {
            ShouldRender::No
        }
    }