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: block.rs
    path of file: ./repos/ruff/crates/ruff_linter/src/rules/isort
    
    the code of the file until where you have to start completion: use std::iter::Peekable;
use std::slice;

use ruff_notebook::CellOffsets;
use ruff_python_ast::statement_visitor::StatementVisitor;
use ruff_python_ast::{self as ast, ElifElseClause, ExceptHandler, MatchCase, Stmt};
use ruff_source_f
    
    fn visit_except_handler(&mut self, except_handler: &'a ExceptHandler) {
        let prev_nested = self.nested;
        self.nested = true;

        let ExceptHandler::ExceptHandler(ast::ExceptHandlerExceptHandler { body, .. }) =
            except_handler;
        for stmt in body {
            self.visit_stmt(stmt);
        }
        self.finalize(None);

        self.nested = prev_nested;
    }