/**
 * Remove members from the consumer group by given member identities.
 * <p>
 * For possible error codes, refer to {@link LeaveGroupResponse}.
 *
 * @param groupId The ID of the group to remove member from.
 * @param reason The reason why the member left the group.
 * @param options The options to carry removing members' information.
 * @return The MembershipChangeResult.
 */
RemoveMembersFromConsumerGroupResult removeMembersFromConsumerGroup(String groupId, String reason, RemoveMembersFromConsumerGroupOptions options);@InterfaceStability.Evolving
public class RemoveMembersFromConsumerGroupOptions extends AbstractOptions<RemoveMembersFromConsumerGroupOptions> {
  /**
   * Sets an optional reason.
   */
  void setReason(final String reason);
  
  /**
   * Returns the optional reason or an empty String if not defined.
   */
  String reason();
}