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: redshift.rs
    path of file: ./repos/sqlparser-rs/src/dialect
    
    the code of the file until where you have to start completion: // Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in complia
    
    fn is_proper_identifier_inside_quotes(&self, mut chars: Peekable<Chars<'_>>) -> bool {
        chars.next();
        let mut not_white_chars = chars.skip_while(|ch| ch.is_whitespace()).peekable();
        if let Some(&ch) = not_white_chars.peek() {
            return self.is_identifier_start(ch);
        }
        false
    }