code: private static JsonPointer perUserPermissionPointer(String repoName, String memberId) {
          return JsonPointer.compile("/repos" + encodeSegment(repoName) +
                                     "/perUserPermissions" + encodeSegment(memberId));
      }
docs: Generates the path of {@link JsonPointer} of permission of the specified {@code memberId} in the
  specified {@code repoName}.