public static function hasCommand(String $label) : Bool
	{
		return (isset(Command::$commands[$label])) ? true : false;
	}
public static function hasCommand(String $label) : Bool
	{
		return (isset(Command::$commands[$label])) ? true : false;
	}
public static function hasCommand ( String $ label ) : Bool { return ( isset ( Command :: $ commands [ $ label ] ) ) ? true : false ; }
Checks if a command is registered.

@param 	$command <String>
@access 	public
@static
@return 	<Boolean>
Checks if a command is registered .