* @param {string} [options.username=null] The username which is used to authenticate against the database.
* @param {string} [options.password=null] The password which is used to authenticate against the database.
* @param {string} [options.database=null] The name of the database
* @param {string} [options.dialect] The dialect of the database you are connecting to. One of mysql, postgres, sqlite and mssql.
* @param {string} [options.dialect] The dialect of the database you are connecting to. One of mysql, postgres, sqlite, mariadb and mssql.
* @param {string} [options.dialectModule=null] If specified, use this dialect library. For example, if you want to use pg.js instead of pg when connecting to a pg database, you should specify 'require("pg.js")' here
* @param {string} [options.dialectModulePath=null] If specified, load the dialect library from this path. For example, if you want to use pg.js instead of pg when connecting to a pg database, you should specify '/path/to/pg.js' here
* @param {object} [options.dialectOptions] An object of additional options, which are passed directly to the connection library
