text: /*
   * Licensed to Elasticsearch B.V. under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. Elasticsearch B.V. 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.
   */
  
  import { isPlainObject } from 'lodash';
  
  export default function setHeaders(originalHeaders, newHeaders) {
    if (!isPlainObject(originalHeaders)) {
      throw new Error(`Expected originalHeaders to be an object, but ${typeof originalHeaders} given`);
    }
    if (!isPlainObject(newHeaders)) {
      throw new Error(`Expected newHeaders to be an object, but ${typeof newHeaders} given`);
    }
  
    return {
      ...originalHeaders,
      ...newHeaders
    };
  }
  