original_string: public function getContentStream(ObjectIdInterface $docId, $streamId = null, $offset = null, $length = null)
      {
          return $this->getBinding()->getObjectService()->getContentStream(
              $this->getRepositoryId(),
              $docId->getId(),
              $streamId,
              $offset,
              $length
          );
      }
code: public function getContentStream(ObjectIdInterface $docId, $streamId = null, $offset = null, $length = null)
      {
          return $this->getBinding()->getObjectService()->getContentStream(
              $this->getRepositoryId(),
              $docId->getId(),
              $streamId,
              $offset,
              $length
          );
      }
code_tokens: public function getContentStream ( ObjectIdInterface $ docId , $ streamId = null , $ offset = null , $ length = null ) { return $ this -> getBinding ( ) -> getObjectService ( ) -> getContentStream ( $ this -> getRepositoryId ( ) , $ docId -> getId ( ) , $ streamId , $ offset , $ length ) ; }
docstring: Retrieves the main content stream of a document.
  
  @param ObjectIdInterface $docId the ID of the document
  @param string|null $streamId the stream ID
  @param integer|null $offset the offset of the stream or <code>null</code> to read the stream from the beginning
  @param integer|null $length the maximum length of the stream or <code>null</code> to read to the end of the
  stream
  @return StreamInterface|null the content stream or <code>null</code> if the
  document has no content stream
docstring_tokens: Retrieves the main content stream of a document .