use std::collections::HashMap;
use std::error::Error;
use std::fmt::{Debug, Display, Formatter};
use std::fmt::Result as FMTResult;
use std::result::Result;

use clap::ArgMatches;

use runtime::Runtime;

pub mod bm;
pub mod helpers;

/**
 * Module interface, each module has to implement this.
 */
pub trait Module<'a> : Debug {
    fn exec(&self, matches: &ArgMatches) -> bool;
    fn name(&self) -> &'static str;
}


use std::collections::HashMap;
use std::error::Error;
use std::fmt::{Debug, Display, Formatter};
use std::fmt::Result as FMTResult;
use std::result::Result;

use clap::ArgMatches;

use runtime::Runtime;

pub mod bm;
pub mod helpers;

pub trait Module<'a> : Debug {
    fn exec(&self, matches: &ArgMatches) -> bool;
    fn name(&self) -> &'static str;
}


--- 
+++ 
@@ -11,6 +11,9 @@
 pub mod bm;
 pub mod helpers;
 
+/**
+ * Module interface, each module has to implement this.
+ */
 pub trait Module<'a> : Debug {
     fn exec(&self, matches: &ArgMatches) -> bool;
     fn name(&self) -> &'static str;
Add doc to Module trait
