public default void removeHasContainer(final HasContainer hasContainer) {
        throw new UnsupportedOperationException("The holder does not support container removal: " + this.getClass().getCanonicalName());
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/HasContainerHolder.java