text: const mongoose = require('mongoose');
  const TGUser = mongoose.model('tg_users');
  const log = require('../../logger').getLogger('DB.TG_USERS');
  const SS = require('../lib').smartStringify;
  
  
  
  async function getTGUserById(_id) {
    const logTrace = 'getTGUserById().';
    return new Promise(async (resolve, reject) => {
      const projection = {};
      try {
        const doc = await TGUser.findById(_id, projection);
        log.trace('%s Result:', logTrace, SS(doc));
        return resolve(doc);
      } catch (error) {
        log.error('%s Error:', logTrace, error);
        return reject(error);
      }
    });
  }
  
  
  async function createTGUser(tgUser) {
    const logTrace = 'createTGUser()).';
    return new Promise(async (resolve, reject) => {
      try {
        const doc = new TGUser({ ...tgUser });
        await doc.save();
        log.trace('%s Result:', logTrace, SS(doc));
        return resolve(doc);
      } catch (error) {
        log.error('%s Error:', logTrace, error);
        return reject(error);
      }
    });
  }
  
  
  module.exports = {
    getTGUserById,
    createTGUser,
  };
  