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/biome/crates/biome_css_parser/src/syntax/selector
    
    the code of the file until where you have to start completion: mod attribute;
mod pseudo_class;
mod pseudo_element;
pub(crate) mod relative_selector;

use crate::lexer::CssLexContext;
use crate::parser::CssParser;
use crate::synt
    
fn selector_lex_context(p: &mut CssParser) -> CssLexContext {
    // It's an inverted logic for `is_nth_at_selector(p, 1)`.
    if p.nth_at_ts(1, SELECTOR_LEX_SET) {
        CssLexContext::Regular
    } else {
        CssLexContext::Selector
    }
}