code: function alias( name_current, name_alias ) {
  		if ( util.type( this ) != desc_class_type.value )
  			return null;
  
  		var name, proto = this.prototype;
  
  		if ( is_obj( name_current ) ) {
  			for ( name in name_current )
  				!util.has( name_current, name ) || alias.call( this, name, name_current[name] );
  		}
  		else if ( typeof proto[name_current] == 'function' )
  			util.def( proto, name_alias, get_method_descriptor( proto, name_current ), true );
  
  		return this;
  	}
docs: Class static methods