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: test.rs
    path of file: ./repos/surrealdb/core/src/syn/v2/lexer
    
    the code of the file until where you have to start completion: use chrono::{FixedOffset, NaiveDate, Offset, TimeZone, Utc};

use crate::syn::v2::token::{t, NumberKind, TokenKind};

macro_rules! test_case(
	($source:expr => [$($token:expr),*$(,)?]) => {
		let mut lexer = crate::syn::v2::lexer::Lexer::new($source.as_bytes());
		let mut i = 0;
		$(
			let next = lexer.next();
			if let Some(next) = next {
				let span = std::str::from_utf8(lexer.reader.span(next.span)).unwrap_or("invalid utf8");
				if let TokenKind::Invalid = next.kind{
					let error = lexer.error.take().unwrap();
					assert_eq!(next.kind, $token, "{} = {}:{} => {}",span, i, stringify!($token), error);
	
    
fn uuid() {
	let mut lexer = crate::syn::v2::lexer::Lexer::new(
		r#" u"e72bee20-f49b-11ec-b939-0242ac120002" "#.as_bytes(),
	);
	let token = lexer.next_token();
	if let Some(error) = lexer.error {
		println!("ERROR: {} @ ", error);
	}
	assert_eq!(token.kind, TokenKind::Uuid);
	let uuid = lexer.uuid.take().unwrap();
	assert_eq!(uuid.0.to_string(), "e72bee20-f49b-11ec-b939-0242ac120002");

	let mut lexer = crate::syn::v2::lexer::Lexer::new(
		r#" u"b19bc00b-aa98-486c-ae37-c8e1c54295b1" "#.as_bytes(),
	);
	let token = lexer.next_token();
	if let Some(error) = lexer.error {
		println!("ERROR: {} @ ", error);
	}
	assert_eq!(token.kind, TokenKind::Uuid);
	let uuid = lexer.uuid.take().unwrap();
	assert_eq!(uuid.0.to_string(), "b19bc00b-aa98-486c-ae37-c8e1c54295b1");
}