class SampleFunction3 {
    // class variables
    private function;
}

// class properties
class SampleFunction4 {
    private var;
    set function(value) {}
    get function() {
        return this.var;
    }
}

class SampleFunction5 {
    function() {} // class methods
}

// interface declarations
interface SampleFunction6 {
    function: any;
}