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: error.rs
    path of file: ./repos/rstest/rstest_macros/src
    
    the code of the file until where you have to start completion: /// Module for error rendering stuff
use std::collections::HashMap;

use proc_macro2::TokenStream;
use syn::{spanned::Spanned, visit::Visit};
use 
    
    fn visit_type(&mut self, i: &'ast syn::Type) {
        if self.0 {
            return;
        }
        if let syn::Type::ImplTrait(_) = i {
            self.0 = true
        }
        visit::visit_type(self, i);
    }