public void setIndentStep(String s) {
            this.indentStep = s;
        }
Set the current indent step.

@param indentStep
         The new indent step (0 or less for no indentation).
@see #getIndentStep()

@deprecated Should use the version that takes string.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/graphml/GraphMLWriterHelper.java