code: @Override
      public DescribeGlobalTableResult describeGlobalTable(DescribeGlobalTableRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeGlobalTable(request);
      }
docs: <p>
  Returns information about the specified global table.
  </p>
  
  @param describeGlobalTableRequest
  @return Result of the DescribeGlobalTable operation returned by the service.
  @throws InternalServerErrorException
  An error occurred on the server side.
  @throws GlobalTableNotFoundException
  The specified global table does not exist.
  @sample AmazonDynamoDB.DescribeGlobalTable
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/dynamodb-2012-08-10/DescribeGlobalTable" target="_top">AWS
  API Documentation</a>