text: 'use strict';
  
  var Gerencianet = require('gn-api-sdk-node');
  var options = require('../../credentials');
  
  
  var params = {
    id: 1008
  }
  
  var body = {
    notification_url: 'http://yourdomain.com',
    custom_id: 'my_new_id'
  }
  
  var gerencianet = new Gerencianet(options);
  
  gerencianet
    .updateChargeMetadata(params, body)
        .then((resposta) => {
          console.log(resposta)
      })
      .catch((error) => {
          console.log(error);
      })
      .done();