public static Set<ExecutableElement>
            methodsIn(Set<? extends Element> elements) {
        return setFilter(elements, METHOD_KIND, ExecutableElement.class);
    }
public static Set < ExecutableElement > methodsIn ( Set < ? extends Element > elements ) { return setFilter ( elements , METHOD_KIND , ExecutableElement . class ) ; }
Returns a set of methods in {@code elements}.
@return a set of methods in {@code elements}
@param elements the elements to filter