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: env.go
    path of file: ./repos/aresdb/utils
    
    the code of the file until where you have to start completion: //  Copyright (c) 2017-2018 Uber Technologies, Inc.
//
// Licensed under the Apache License, Versi
    
func GetAresEnv() AresEnv {
	aresEnv := AresEnv(GetConfig().Env)
	switch aresEnv {
	case EnvProd:
		break
	case EnvStaging:
		break
	case EnvDev:
		break
	case EnvTest:
		break
	default:
		return EnvDev
	}
	return aresEnv
}