Use Angular Directive attributes in its template

How can I use the value of an attribute in a directive? My element looks like this:

<div class="tooltip-icon" 
  data-my-tooltip="click" 
  data-tooltip-title="foo" 
  data-tooltip-content="test content"></div>

I would like to use that in the template of my directive, which looks like this:

mainApp.directive('myTooltip',
    function() {

        // allowed event listeners
        var allowedListeners = ["click"];

        return {
            restrict: 'A',
            template:   '<div class="tooltip-title">...</div>' +
                        '<div class="tooltip-content">' +
                        '...</div>',
            link: function(scope, elm, attrs) {
                if(allowedListeners.indexOf(attrs.myTooltip) != -1){
                    elm.bind(attrs.myTooltip, function(){
                        ...
                    });
                }

            }
        };
    }
);

Where the triple dots are there should be code, but I cannot figure out how to get the contents of the attrs object (attrs.tooltipTitle, etc) into that template.