docs: function find (client) {
    return function find (realmName, userId) {
      return new Promise((resolve, reject) => {
        const req = {
          auth: {
            bearer: privates.get(client).accessToken
          },
          json: true
        };
  
        req.url = `${client.baseUrl}/admin/realms/${realmName}/users/${userId}/role-mappings`;
  
        request(req, (err, resp, body) => {
          if (err) {
            return reject(err);
          }
  
          if (resp.statusCode !== 200) {
            return reject(body);
          }
  
          return resolve(body);
        });
      });
    };
  }