public void addAutosizingEnabled(Boolean autosizingEnabled) {
    addToMetricsMessage(GROUP_NAME_FOR_DIAGNOSTICS_MANAGER, AUTOSIZING_ENABLED_METRIC_NAME, autosizingEnabled);
  }
Add the current auto-scaling setting.
@param autosizingEnabled the parameter value.
samza-core/src/main/scala/org/apache/samza/diagnostics/DiagnosticsStreamMessage.java