code: public List<PackageFile> getPackageFiles(Object projectIdOrPath, Integer packageId) throws GitLabApiException {
          return (getPackageFiles(projectIdOrPath, packageId, getDefaultPerPage()).all());
      }
docs: Get a list of package files of a single package.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/packages/:package_id/package_files</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param packageId the ID of the package to get the package files for
  @return a list of PackageFile instances for the specified package ID
  @throws GitLabApiException if any exception occurs