public void addToFunctions(Function elem) {
    if (this.functions == null) {
      this.functions = new java.util.ArrayList<Function>();
    }
    this.functions.add(elem);
  }
Returns true if field function_names is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/GetFunctionsResponse.java