content: /*
   * This file is referred and derived from project apache/tinkerpop
   *
   * https://github.com/apache/tinkerpop/blob/master/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/ByModulating.java
   *
   * which has the following license:
   *
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied. See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package com.alibaba.graphscope.gremlin.plugin.step;
  
  import org.apache.tinkerpop.gremlin.process.traversal.Traversal;
  
  import java.util.List;
  
  // by multiple keys or values, will be invoked in group by
  public interface MultiByModulating {
      void modulateBy(final List<Traversal.Admin<?, ?>> kvTraversals);
  }
  