codemirror show hints with angular

Question

How to show hints and define dictionary with ui-codemirror?

       $scope.cmOption = {
        lineWrapping : true,
        lineNumbers: true,
        textWrapping: true,
        indentWithTabs: true,
        readOnly: false,
        mode: "javascript",
        matchBrackets: true,
        autoCloseBrackets: true,
        gutters: ["CodeMirror-lint-markers"],
        lint: true,
        showHint: true
    };

I tried with ng-codemirror-dictionary-hint but it gives me an error

instance.showHint is not a function