ratis-shell/src/main/java/org/apache/ratis/shell/cli/sh/peer/AddCommand.java [97:134]:
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      processReply(reply, () -> "Failed to change raft peer");
    }
    return 0;
  }

  @Override
  public String getUsage() {
    return String.format("%s"
            + " -%s <PEER0_HOST:PEER0_PORT,PEER1_HOST:PEER1_PORT,PEER2_HOST:PEER2_PORT>"
            + " [-%s <RAFT_GROUP_ID>]"
            + " <[-%s <PEER0_HOST:PEER0_PORT>]|[-%s <peerId>]>",
        getCommandName(), PEER_OPTION_NAME, GROUPID_OPTION_NAME,
        ADDRESS_OPTION_NAME, PEER_ID_OPTION_NAME);
  }

  @Override
  public String getDescription() {
    return description();
  }

  @Override
  public Options getOptions() {
    return super.getOptions()
        .addOption(Option.builder()
            .option(ADDRESS_OPTION_NAME)
            .hasArg()
            .desc("The address information of ratis peers")
            .build())
        .addOption(Option.builder()
            .option(PEER_ID_OPTION_NAME).hasArg()
            .desc("The peer id of ratis peers")
            .build());
  }

  /**
   * @return command's description
   */
  public static String description() {
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ratis-shell/src/main/java/org/apache/ratis/shell/cli/sh/peer/RemoveCommand.java [76:113]:
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      processReply(reply, () -> "Failed to change raft peer");
    }
    return 0;
  }

  @Override
  public String getUsage() {
    return String.format("%s"
            + " -%s <PEER0_HOST:PEER0_PORT,PEER1_HOST:PEER1_PORT,PEER2_HOST:PEER2_PORT>"
            + " [-%s <RAFT_GROUP_ID>]"
            + " <[-%s <PEER0_HOST:PEER0_PORT>]|[-%s <peerId>]>",
        getCommandName(), PEER_OPTION_NAME, GROUPID_OPTION_NAME,
        ADDRESS_OPTION_NAME, PEER_ID_OPTION_NAME);
  }

  @Override
  public String getDescription() {
    return description();
  }

  @Override
  public Options getOptions() {
    return super.getOptions()
        .addOption(Option.builder()
            .option(ADDRESS_OPTION_NAME)
            .hasArg()
            .desc("The address information of ratis peers")
            .build())
        .addOption(Option.builder()
            .option(PEER_ID_OPTION_NAME).hasArg()
            .desc("The peer id of ratis peers")
            .build());
  }

  /**
   * @return command's description
   */
  public static String description() {
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