code: @Override
      public StartBuildResult startBuild(StartBuildRequest request) {
          request = beforeClientExecution(request);
          return executeStartBuild(request);
      }
docs: <p>
  Starts running a build.
  </p>
  
  @param startBuildRequest
  @return Result of the StartBuild operation returned by the service.
  @throws InvalidInputException
  The input value that was provided is not valid.
  @throws ResourceNotFoundException
  The specified AWS resource cannot be found.
  @throws AccountLimitExceededException
  An AWS service limit was exceeded for the calling AWS account.
  @sample AWSCodeBuild.StartBuild
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/codebuild-2016-10-06/StartBuild" target="_top">AWS API
  Documentation</a>