@Deprecated
    public boolean isKeySet() {
      return (this == KEY_SET);
    }
Check if this is a region <code>keySet</code> operation.

@return true if this is a region <code>keySet</code> operation.
@deprecated Use {@code getOperationCode() == KEY_SET} instead
geode-core/src/main/java/org/apache/geode/cache/operations/OperationContext.java