code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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 org.openqa.selenium.remote.tracing;
  
  import java.util.Map;
  
  public interface Span extends AutoCloseable, TraceContext {
  
    Span setName(String name);
  
    Span setAttribute(String key, boolean value);
  
    Span setAttribute(String key, Number value);
  
    Span setAttribute(String key, String value);
  
    Span addEvent(String name);
  
    Span addEvent(String name, Map<String, EventAttributeValue> attributeMap);
  
    Span setStatus(Status status);
  
    @Override
    void close();
  
    enum Kind {
      CLIENT("client"),
      SERVER("server"),
  
      PRODUCER("producer"),
      CONSUMER("consumer"),
      ;
  
      // The nice name is the name expected in an OT trace.
      private final String niceName;
  
      Kind(String niceName) {
        this.niceName = niceName;
      }
  
      @Override
      public String toString() {
        return niceName;
      }
    }
  }
  