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: docker_running_containers.go
    path of file: ./repos/werf/pkg/container_backend
    
    the code of the file until where you have to start completion: package container_backend

import (
	"context"

    
func UnregisterRunningContainer(name string) {
	mu.Lock()
	defer mu.Unlock()

	var res []*runningDockerContainer
	for _, cont := range runningDockerContainers {
		if cont.Name != name {
			res = append(res, cont)
		}
	}
	runningDockerContainers = res
}