import { Pool as PgPool } from "pg";
import { Pool as MySqlPool } from "mysql2/promise";
import { Client as CassandraClient } from "cassandra-driver";
import { MongoConnection } from "../connections/mongodb";
export type DBType = "postgres" | "mysql" | "mongodb" | "cassandra";
export type AnyConnection = PgPool | MySqlPool | MongoConnection | CassandraClient;
export type { PgPool, MySqlPool, MongoConnection, CassandraClient };
export interface CentralDBConfig {
    host: string;
    port: number;
    username: string;
    password: string;
    database: string;
    db_type: DBType;
    schema?: string;
    data_center?: string;
}
export interface DBConfig {
    type: DBType;
    host: string;
    database: string;
    user: string;
    password: string;
    port: number;
    uri?: string;
    dataCenter?: string;
}
export interface ConnectionInstances {
    [key: string]: any;
}