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: doc.rs
    path of file: ./repos/kcl/kclvm/sema/src/resolver
    
    the code of the file until where you have to start completion: use kclvm_ast::ast::SchemaStmt;
use pcre2::bytes::Regex;
use std::collections::{HashMap, HashSet};
use std::iter::Iterator;
use std::str;

lazy_static::lazy_s
    
    fn read(&mut self) -> String {
        if !self.eof() {
            let out = self.data[self.l].clone();
            self.l += 1;
            return out;
        } else {
            return "".to_string();
        }
    }