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: re_sub_positional_args.rs
    path of file: ./repos/ruff/crates/ruff_linter/src/rules/flake8_bugbear/rules
    
    the code of the file until where you have to start completion: use std::fmt;

use ruff_python_ast::{self as ast};

use ruff_diagnostics::{Diagnostic, Violation};
use ruff_macros::{derive_message_formats, violation};
use ruff_python_semantic::Modules;
use ruff_text_size::Ranged;

use crate::checkers::ast::Checker;

/// ## What it does
/// Checks for calls to `re.sub`, `re.subn`, and `re.split` that pass `count`,
/// `maxsplit`, or `flags` as positional arguments.
///
/// ## Why is this bad?
/// Passing `count`, `maxsplit`, or `flags` as positional argument
    
pub(crate) fn re_sub_positional_args(checker: &mut Checker, call: &ast::ExprCall) {
    if !checker.semantic().seen_module(Modules::RE) {
        return;
    }

    let Some(method) = checker
        .semantic()
        .resolve_qualified_name(&call.func)
        .and_then(|qualified_name| match qualified_name.segments() {
            ["re", "sub"] => Some(Method::Sub),
            ["re", "subn"] => Some(Method::Subn),
            ["re", "split"] => Some(Method::Split),
            _ => None,
        })
    else {
        return;
    };

    if call.arguments.args.len() > method.num_args() {
        checker.diagnostics.push(Diagnostic::new(
            ReSubPositionalArgs { method },
            call.range(),
        ));
    }
}