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: mod.rs
    path of file: ./repos/krustlet/crates/kubelet/src/container
    
    the code of the file until where you have to start completion: //! `container` is a collection of utilities surrounding the Kubernetes container API.

use k8s_openapi::api::core::v1::Container as KubeConta
    
    fn get_mut_by_name(&mut self, name: String) -> Option<&mut V> {
        // TODO: borrow checker objected to any of the more natural forms
        let app_key = ContainerKey::App(name.clone());
        if self.contains_key(&app_key) {
            self.get_mut(&app_key)
        } else {
            self.get_mut(&ContainerKey::Init(name))
        }
    }