public static Optional<String> extractOrganizationName(String groupName) {
    return extractRegexGroupIfMatches(groupName, 1);
  }
@Test
  public void extractOrganizationName_whenNameIsIncorrect_returnEmpty() {
    assertThat(GithubTeamConverter.extractOrganizationName("Org1")).isEmpty();
    assertThat(GithubTeamConverter.extractOrganizationName("Org1/")).isEmpty();
  }