code: @Override
      public PutBotAliasResult putBotAlias(PutBotAliasRequest request) {
          request = beforeClientExecution(request);
          return executePutBotAlias(request);
      }
docs: <p>
  Creates an alias for the specified version of the bot or replaces an alias for the specified bot. To change the
  version of the bot that the alias points to, replace the alias. For more information about aliases, see
  <a>versioning-aliases</a>.
  </p>
  <p>
  This operation requires permissions for the <code>lex:PutBotAlias</code> action.
  </p>
  
  @param putBotAliasRequest
  @return Result of the PutBotAlias operation returned by the service.
  @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.PutBotAlias
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/lex-models-2017-04-19/PutBotAlias" target="_top">AWS API
  Documentation</a>