Convert directive from Angular1 to Angular2

I am trying to migrate from angular1 to angular2 (on Javascript), how would I write this in Angular2? I am awfully confused

Thank you

module.directive('asiPath', function($compile) {
return function(scope, element, attrs) {
scope.$watch(
function(scope) { return scope.$eval(attrs.asiPath); },
function(value) { asimon.template.load(element, attrs, scope); }
);
};
});

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