code: @Override
      public GetPullRequestResult getPullRequest(GetPullRequestRequest request) {
          request = beforeClientExecution(request);
          return executeGetPullRequest(request);
      }
docs: <p>
  Gets information about a pull request in a specified repository.
  </p>
  
  @param getPullRequestRequest
  @return Result of the GetPullRequest operation returned by the service.
  @throws PullRequestDoesNotExistException
  The pull request ID could not be found. Make sure that you have specified the correct repository name and
  pull request ID, and then try again.
  @throws InvalidPullRequestIdException
  The pull request ID is not valid. Make sure that you have provided the full ID and that the pull request
  is in the specified repository, and then try again.
  @throws PullRequestIdRequiredException
  A pull request ID is required, but none was provided.
  @throws EncryptionIntegrityChecksFailedException
  An encryption integrity check failed.
  @throws EncryptionKeyAccessDeniedException
  An encryption key could not be accessed.
  @throws EncryptionKeyDisabledException
  The encryption key is disabled.
  @throws EncryptionKeyNotFoundException
  No encryption key was found.
  @throws EncryptionKeyUnavailableException
  The encryption key is not available.
  @sample AWSCodeCommit.GetPullRequest
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/codecommit-2015-04-13/GetPullRequest" target="_top">AWS API
  Documentation</a>