docs: public ImpersonationToken getImpersonationToken(Object userIdOrUsername, Integer tokenId) throws GitLabApiException {
  
          if (tokenId == null) {
              throw new RuntimeException("tokenId cannot be null");
          }
  
          Response response = get(Response.Status.OK, null, "users", getUserIdOrUsername(userIdOrUsername), "impersonation_tokens", tokenId);
          return (response.readEntity(ImpersonationToken.class));
      }