import { type GeneratorMetadata } from "../types.ts";
/**
 * Minimal structural database interface. `pg.Pool` / `pg.Client` satisfy it,
 * as do Bun and other drivers. postgres-meta injects its forked-pg pool here,
 * keeping its own error handling on its side of the boundary. Errors throw;
 * callers adapt.
 */
export interface Queryable {
    query(sql: string): Promise<{
        rows: any[];
    }>;
}
export interface IntrospectOptions {
    includedSchemas?: string[];
    excludedSchemas?: string[];
}
/**
 * Introspect a database into the `GeneratorMetadata` contract.
 *
 * Port of `getGeneratorMetadata` from `postgres-meta/src/lib/generators.ts`.
 * Instead of going through the `PostgresMeta*` manager classes, it calls the
 * ported SQL builders directly with the single option combination the
 * generator path uses, then applies the int8 `normalize` coercion so output is
 * identical regardless of driver. Connection lifecycle is the caller's
 * responsibility — unlike `getGeneratorMetadata`, this does not end the pool.
 */
export declare function introspect(db: Queryable, opts?: IntrospectOptions): Promise<GeneratorMetadata>;