pub fn new_era(&self) {
        // Lock our inner mutex
        let mut inner = self.0.lock().unwrap();

        inner.eras.push(Vec::new());
    }
// Begin a new Era and make it the current one.
Begin a new Era and make it the current one.
Begin a new Era and make it the current one .
pub fn new_era(&self) {
        // Lock our inner mutex
        let mut inner = self.0.lock().unwrap();
        inner.eras.push(Vec::new());
    }
pub fn new_era ( & self ) { // Lock our inner mutex let mut inner = self . 0 . lock ( ) . unwrap ( ) ; inner . eras . push ( Vec :: new ( ) ) ; }
Begin a new Era and make it the current one.
Begin a new Era and make it the current one .
&self
&self