code: function ( arg, obj ) {
  		if ( $[arg] !== undefined || !obj instanceof Object ) {
  			throw new Error( label.error.invalidArguments );
  		}
  		
  		$[arg] = obj;
  
  		return $[arg];
  	}
docs: Registers a module on abaaso
  
  @method module
  @param  {String} arg Module name
  @param  {Object} obj Module structure
  @return {Object}     Module registered