text: 'use strict';
  
  var dbm;
  var type;
  var seed;
  
  /**
   * We receive the dbmigrate dependency from dbmigrate initially.
   * This enables us to not have to rely on NODE_PATH.
   */
  exports.setup = function(options, seedLink) {
    dbm = options.dbmigrate;
    type = dbm.dataType;
    seed = seedLink;
  };
  
  const TABLE = 'transaction';
  const COLUMN = 'external_id';
  
  exports.up = async function(db) {
    await db.addColumn(TABLE, COLUMN, {
      type: 'string'
    });
  };
  
  exports.down = async function(db) {
    await db.removeColumn(TABLE, COLUMN);
  };
  
  exports._meta = {
    version: 1
  };
  