public Script setCharAtEnd(final char ch) {
        scriptBuilder.setCharAt(scriptBuilder.length() - 1, ch);
        return this;
    }
General representation of script

@author Stark Arya (sandszhou.zj@alibaba-inc.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/Script.java