docs: function init(input) {
    // Use provided pool
    if(typeof input == 'function') db.pool = input;
  
    else {
      // Create the pool with any options merged with the below defaults
      db.pool = mysql.createPool(Object.assign({
        user: 'root',
        password: 'root',
        database: 'test'
      },input));
    }
  
    // Set the local _pool(just for convenience)
    _pool = db.pool;
  
    return db;
  }