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: function_selector_list.rs
    path of file: ./repos/biome/crates/biome_css_parser/src/syntax/selector/pseudo_class
    
    the code of the file until where you have to start completion: use crate::parser::CssParser;
use crate::syntax::parse_error::expected_selector;
use crate::syntax::selector::{eat_or_recover_selector_function_close_token, SelectorList};
use biome_css_syntax::CssSyntaxKind::*;
use biome_css_syntax::{CssSyntaxKind, T};
use biome_parser::parse_lists::ParseSeparatedList;
use biome_parser::parsed_syntax::ParsedSyntax;
use biome_parser::parsed_syntax::ParsedSyntax::{Absent, Present};
use biome_parser::{token_set, Parser, TokenSet};

const PSEUDO_CLASS_FUNCTION_SELECTOR_LIST_SET: TokenSet<CssSyntaxKind> =
    token_set![T![matches], T![not], T![is], T![where]];

#[inline]
pub(crate) fn is_at_pseudo_class_function_selector_list(p: &mut CssParser) -> bool {
    p.at_ts(PSEUDO_CLASS_FUNCTION_SELECTOR_LIST_SET) && p.nth_at(1, T!['('])
}

#[inline]
pub(crate) fn parse_pseudo_class_function_selector_list(p: &mut CssParser) -> ParsedSyntax {
    if !is_at_ps
    
pub(crate) fn parse_pseudo_class_function_selector_list(p: &mut CssParser) -> ParsedSyntax {
    if !is_at_pseudo_class_function_selector_list(p) {
        return Absent;
    }

    let m = p.start();

    p.bump_ts(PSEUDO_CLASS_FUNCTION_SELECTOR_LIST_SET);
    p.bump(T!['(']);

    let list = SelectorList::default()
        .with_end_kind_ts(token_set!(T![')']))
        // we don't need to recover here, because we have a better diagnostic message in a close token
        .disable_recovery()
        .parse_list(p);
    let list_range = list.range(p);

    if list_range.is_empty() && p.at(T![')']) {
        let diagnostic = expected_selector(p, list_range);
        p.error(diagnostic);
    }

    let kind = if eat_or_recover_selector_function_close_token(p, list, expected_selector)
        && !list_range.is_empty()
    {
        CSS_PSEUDO_CLASS_FUNCTION_SELECTOR_LIST
    } else {
        CSS_BOGUS_PSEUDO_CLASS
    };

    Present(m.complete(p, kind))
}