//! # EnvType crate
//!
//! env-type crate is a library that provides an enum to represent the environment type.
//! It is used to determine the environment type of the application.
//! The environment type is used to determine the configuration of the application.
//!
//! The crate also provides a trait to get the environment key from the environment variable.
//! The environment key is used to get the environment type from the environment variable.
pub mod types;
