code: @Override
      public CreateSlotTypeVersionResult createSlotTypeVersion(CreateSlotTypeVersionRequest request) {
          request = beforeClientExecution(request);
          return executeCreateSlotTypeVersion(request);
      }
docs: <p>
  Creates a new version of a slot type based on the <code>$LATEST</code> version of the specified slot type. If the
  <code>$LATEST</code> version of this resource has not changed since the last version that you created, Amazon Lex
  doesn't create a new version. It returns the last version that you created.
  </p>
  <note>
  <p>
  You can update only the <code>$LATEST</code> version of a slot type. You can't update the numbered versions that
  you create with the <code>CreateSlotTypeVersion</code> operation.
  </p>
  </note>
  <p>
  When you create a version of a slot type, Amazon Lex sets the version to 1. Subsequent versions increment by 1.
  For more information, see <a>versioning-intro</a>.
  </p>
  <p>
  This operation requires permissions for the <code>lex:CreateSlotTypeVersion</code> action.
  </p>
  
  @param createSlotTypeVersionRequest
  @return Result of the CreateSlotTypeVersion operation returned by the service.
  @throws NotFoundException
  The resource specified in the request was not found. Check the resource and try again.
  @throws ConflictException
  There was a conflict processing the request. Try your request again.
  @throws LimitExceededException
  The request exceeded a limit. Try your request again.
  @throws InternalFailureException
  An internal Amazon Lex error occurred. Try your request again.
  @throws BadRequestException
  The request is not well formed. For example, a value is invalid or a required field is missing. Check the
  field values, and try again.
  @throws PreconditionFailedException
  The checksum of the resource that you are trying to change does not match the checksum in the request.
  Check the resource's checksum and try again.
  @sample AmazonLexModelBuilding.CreateSlotTypeVersion
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/lex-models-2017-04-19/CreateSlotTypeVersion"
  target="_top">AWS API Documentation</a>