import type { Nullish } from '@sequelize/utils';
import type { Class } from 'type-fest';
import type { AbstractDialect } from './abstract-dialect/dialect.js';
import type { Logging, ModelOptions, ModelStatic } from './model.js';
import type { SequelizeHooks } from './sequelize-typescript.js';
import type { DefaultSetOptions, DialectName, QueryOptions, ReplicationOptions, RetryOptions, SyncOptions } from './sequelize.js';
import type { PoolOptions } from './sequelize.types.js';
import type { IsolationLevel, TransactionNestMode, TransactionType } from './transaction.js';
export declare function importDialect(dialect: string): typeof AbstractDialect;
export declare const PERSISTED_SEQUELIZE_OPTIONS: readonly (keyof PersistedSequelizeOptions<AbstractDialect<object, object>>)[];
/**
 * The options that are accessible via {@link Sequelize#options}.
 */
export interface PersistedSequelizeOptions<Dialect extends AbstractDialect> extends Logging {
    /**
     * The precision for the `createdAt`/`updatedAt`/`deletedAt` DATETIME columns that Sequelize adds to models.
     * Can be a number between 0 and 6, or null to use the default precision of the database. Defaults to 6.
     *
     * @default 6
     */
    defaultTimestampPrecision?: number | null;
    /**
     * How nested transaction blocks behave by default.
     * See {@link ManagedTransactionOptions#nestMode} for more information.
     *
     * @default TransactionNestMode.reuse
     */
    defaultTransactionNestMode?: TransactionNestMode;
    /**
     * Default options for model definitions. See Model.init.
     */
    define?: Omit<ModelOptions, 'name' | 'modelName' | 'tableName'>;
    /**
     * Disable the use of AsyncLocalStorage to automatically pass transactions started by {@link Sequelize#transaction}.
     * You will need to pass transactions around manually if you disable this.
     */
    disableClsTransactions?: boolean;
    /**
     * Set the default transaction isolation level.
     * If not set, does not change the database's default transaction isolation level.
     */
    isolationLevel?: IsolationLevel | undefined;
    /**
     * A flag that defines if the default timezone is used to convert dates from the database.
     *
     * @default false
     */
    keepDefaultTimezone?: boolean;
    /**
     * Set to `true` to show bind parameters in log.
     *
     * @default false
     */
    logQueryParameters?: boolean;
    /**
     * Set to `true` to automatically minify aliases generated by sequelize.
     * Mostly useful to circumvent the POSTGRES alias limit of 64 characters.
     *
     * @default false
     */
    minifyAliases?: boolean;
    /**
     * Disable built in type validators on insert and update, e.g. don't validate that arguments passed to integer
     * fields are integer-like.
     *
     * @default false
     */
    noTypeValidation?: boolean;
    /**
     * When representing the JavaScript null primitive in a JSON column, Sequelize can
     * use either the SQL NULL value, or a JSON 'null'.
     *
     * Set this to "json" if you want the null to be stored as a JSON 'null'.
     * Set this to "sql" if you want the null to be stored as the SQL NULL value.
     * Set this to "explicit" if you don't want Sequelize to make any assumptions.
     * This means that you won't be able to use the JavaScript null primitive as the top level value of a JSON column,
     * you will have to use {@link SQL_NULL} or {@link JSON_NULL} instead.
     *
     * This only impacts serialization when inserting or updating values.
     * Comparing always requires to be explicit.
     *
     * Read more: https://sequelize.org/docs/v7/querying/json/
     *
     * @default json
     */
    nullJsonStringification?: 'explicit' | 'json' | 'sql';
    /**
     * A flag that defines if null values should be passed to SQL queries or not.
     *
     * @default false
     */
    omitNull?: boolean;
    prependSearchPath?: boolean | undefined;
    /**
     * Default options for sequelize.query
     */
    query?: QueryOptions;
    /**
     * Set to `false` to make table names and attributes case-insensitive on Postgres and skip double quoting of
     * them.
     *
     * @default true
     */
    quoteIdentifiers?: boolean;
    /**
     * Use read / write replication. To enable replication, pass an object, with two properties, read and write.
     * Write should be an object (a single server for handling writes), and read an array of object (several
     * servers to handle reads). Each read/write server can have the following properties: `host`, `port`,
     * `username`, `password`, `database`.  Connection strings can be used instead of objects.
     *
     * @default false
     */
    replication?: ReplicationOptions<Dialect> | false | Nullish;
    retry?: RetryOptions;
    /**
     * If defined, the connection will use the provided schema instead of the default ("public").
     */
    schema?: string;
    /**
     * Default options for sequelize.set
     */
    set?: DefaultSetOptions;
    /**
     * Default options for sequelize.sync
     */
    sync?: SyncOptions;
    /**
     * The timezone used when converting a date from the database into a JavaScript date. The timezone is also
     * used to SET TIMEZONE when connecting to the server, to ensure that the result of NOW, CURRENT_TIMESTAMP
     * and other time related functions have in the right timezone. For best cross platform performance use the
     * format
     * +/-HH:MM. Will also accept string versions of timezones supported by Intl.Locale (e.g. 'America/Los_Angeles');
     * this is useful to capture daylight savings time changes.
     *
     * @default '+00:00'
     */
    timezone?: string;
    /**
     * Set the default transaction type. See Sequelize.Transaction.TYPES for possible options. Sqlite only.
     *
     * @default 'DEFERRED'
     */
    transactionType?: TransactionType;
}
export declare const EPHEMERAL_SEQUELIZE_OPTIONS: readonly (keyof EphemeralSequelizeOptions<AbstractDialect<object, object>>)[];
/**
 * Sequelize options that are not persisted in the Sequelize instance.
 */
export interface EphemeralSequelizeOptions<Dialect extends AbstractDialect> {
    /**
     * The version of the Database Sequelize will connect to.
     * If unspecified, or set to 0, Sequelize will retrieve it during its first connection to the Database.
     */
    databaseVersion?: string;
    /**
     * The dialect of the database you are connecting to. Either the name of the dialect, or a dialect class.
     */
    dialect: DialectName | Class<Dialect>;
    /**
     * Sets global permanent hooks.
     */
    hooks?: Partial<SequelizeHooks<Dialect>>;
    /**
     * A list of models to load and init.
     *
     * This option is only useful if you created your models using decorators.
     * Models created using {@link Model.init} or {@link Sequelize#define} don't need to be specified in this option.
     *
     * Use {@link importModels} to load models dynamically:
     *
     * @example
     * ```ts
     * import { User } from './models/user.js';
     *
     * new Sequelize({
     *   models: [User],
     * });
     * ```
     *
     * @example
     * ```ts
     * new Sequelize({
     *   models: await importModels(__dirname + '/*.model.ts'),
     * });
     * ```
     */
    models?: ModelStatic[];
    /**
     * Connection pool options
     */
    pool?: PoolOptions<Dialect> | undefined;
    /**
     * The connection URL.
     * If other connection options are set, they will override the values set in this URL.
     */
    url?: string | undefined;
}