public static String removeEndBrackets(final Collection collection) {
        final String string = collection.toString();
        return string.substring(1, string.length() - 1);
    }
Construct the representation for a {@link Graph}.

@param internalString a mapper {@link String} that appends to the end of the standard representation
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/util/StringFactory.java