code: @Override
      public DeleteUtterancesResult deleteUtterances(DeleteUtterancesRequest request) {
          request = beforeClientExecution(request);
          return executeDeleteUtterances(request);
      }
docs: <p>
  Deletes stored utterances.
  </p>
  <p>
  Amazon Lex stores the utterances that users send to your bot. Utterances are stored for 15 days for use with the
  <a>GetUtterancesView</a> operation, and then stored indefinitely for use in improving the ability of your bot to
  respond to user input.
  </p>
  <p>
  Use the <code>DeleteStoredUtterances</code> operation to manually delete stored utterances for a specific user.
  </p>
  <p>
  This operation requires permissions for the <code>lex:DeleteUtterances</code> action.
  </p>
  
  @param deleteUtterancesRequest
  @return Result of the DeleteUtterances operation returned by the service.
  @throws NotFoundException
  The resource specified in the request was not found. Check the resource and try 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.
  @sample AmazonLexModelBuilding.DeleteUtterances
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/lex-models-2017-04-19/DeleteUtterances" target="_top">AWS
  API Documentation</a>