original_string: public function deleteContentStream($refresh = true)
      {
          $newObjectId = $this->getId();
          $changeToken = $this->getPropertyValue(PropertyIds::CHANGE_TOKEN);
  
          $this->getBinding()->getObjectService()->deleteContentStream(
              $this->getRepositoryId(),
              $newObjectId,
              $changeToken
          );
  
          if ($refresh === true) {
              $this->refresh();
          }
  
          if ($newObjectId === null) {
              return null;
          }
  
          return $this->getSession()->getObject(
              $this->getSession()->createObjectId($newObjectId),
              $this->getCreationContext()
          );
      }
code: public function deleteContentStream($refresh = true)
      {
          $newObjectId = $this->getId();
          $changeToken = $this->getPropertyValue(PropertyIds::CHANGE_TOKEN);
  
          $this->getBinding()->getObjectService()->deleteContentStream(
              $this->getRepositoryId(),
              $newObjectId,
              $changeToken
          );
  
          if ($refresh === true) {
              $this->refresh();
          }
  
          if ($newObjectId === null) {
              return null;
          }
  
          return $this->getSession()->getObject(
              $this->getSession()->createObjectId($newObjectId),
              $this->getCreationContext()
          );
      }
code_tokens: public function deleteContentStream ( $ refresh = true ) { $ newObjectId = $ this -> getId ( ) ; $ changeToken = $ this -> getPropertyValue ( PropertyIds :: CHANGE_TOKEN ) ; $ this -> getBinding ( ) -> getObjectService ( ) -> deleteContentStream ( $ this -> getRepositoryId ( ) , $ newObjectId , $ changeToken ) ; if ( $ refresh === true ) { $ this -> refresh ( ) ; } if ( $ newObjectId === null ) { return null ; } return $ this -> getSession ( ) -> getObject ( $ this -> getSession ( ) -> createObjectId ( $ newObjectId ) , $ this -> getCreationContext ( ) ) ; }
docstring: Removes the current content stream from the document and refreshes this object afterwards.
  
  @param boolean $refresh if this parameter is set to <code>true</code>, this object will be refreshed after the
  content stream has been deleted
  @return DocumentInterface|null the updated document, or <code>null</code> if the repository did not return
  an object ID
docstring_tokens: Removes the current content stream from the document and refreshes this object afterwards .