code: @Override
      public GetCommitResult getCommit(GetCommitRequest request) {
          request = beforeClientExecution(request);
          return executeGetCommit(request);
      }
docs: <p>
  Returns information about a commit, including commit message and committer information.
  </p>
  
  @param getCommitRequest
  Represents the input of a get commit operation.
  @return Result of the GetCommit operation returned by the service.
  @throws RepositoryNameRequiredException
  A repository name is required but was not specified.
  @throws InvalidRepositoryNameException
  At least one specified repository name is not valid.</p> <note>
  <p>
  This exception only occurs when a specified repository name is not valid. Other exceptions occur when a
  required repository parameter is missing, or when a specified repository does not exist.
  </p>
  @throws RepositoryDoesNotExistException
  The specified repository does not exist.
  @throws CommitIdRequiredException
  A commit ID was not specified.
  @throws InvalidCommitIdException
  The specified commit ID is not valid.
  @throws CommitIdDoesNotExistException
  The specified commit ID does not exist.
  @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.GetCommit
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/codecommit-2015-04-13/GetCommit" target="_top">AWS API
  Documentation</a>