code: @Override
      public RejectSkillResult rejectSkill(RejectSkillRequest request) {
          request = beforeClientExecution(request);
          return executeRejectSkill(request);
      }
docs: <p>
  Disassociates a skill from the organization under a user's AWS account. If the skill is a private skill, it moves
  to an AcceptStatus of PENDING. Any private or public skill that is rejected can be added later by calling the
  ApproveSkill API.
  </p>
  
  @param rejectSkillRequest
  @return Result of the RejectSkill operation returned by the service.
  @throws ConcurrentModificationException
  There is a concurrent modification of resources.
  @throws NotFoundException
  The resource is not found.
  @sample AmazonAlexaForBusiness.RejectSkill
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/alexaforbusiness-2017-11-09/RejectSkill" target="_top">AWS
  API Documentation</a>