/**
 * @copyright Sister Software
 * @license AGPL-3.0
 * @author Teffen Ellis, et al.
 *
 *   CSV → SQLite ingestion utility. Ported from isp-nexus's `sdk/data/csv.ts`.
 *
 *   Reads a CSV file, infers column types from a sample of rows, creates a SQLite table, and imports
 *   the data. Handles quoted fields, NULL normalization, and duplicate column name disambiguation.
 *
 *   ## Usage
 *
 *   ```sh
 *   mailwoman corpus ingest-csv \
 *   --input /data/corpus/sources/usgov-nppes/npidata_pfile.csv \
 *   --table nppes_providers \
 *   --output /data/corpus/sources/usgov-nppes/nppes.db
 * ```
 *
 *   Options: --input <path> CSV file to ingest (required) --table <name> SQLite table name (default:
 *   derived from input filename) --output <path> SQLite database path (default: input dir /
 *   table.db) --sample <n> Rows to sample for type inference (default: 100) --separator <char>
 *   Field separator (default: ,) --skip <n> Lines to skip before header (default: 0) --no-header
 *   CSV has no header row — columns will be col_0, col_1, etc. --dry-run Infer schema and print
 *   CREATE TABLE, but don't import
 */
/**
 * Flag-shaped options for {@linkcode ingestCSV} — `table`/`output` derive from `input` when omitted.
 */
export interface IngestCSVOptions {
    input: string;
    table?: string;
    output?: string;
    sample?: number;
    separator?: string;
    skip?: number;
    noHeader?: boolean;
    dryRun?: boolean;
}
/**
 * Ingest a CSV into SQLite: infer column types from a sample, create the table, import the rows. Throws when `input` is
 * missing. NOTE(phase1): progress narration still writes stderr directly — this predates the report-callback contract
 * and the write sites are deep in the type-inference helpers; thread a report param if a caller ever needs to capture
 * it.
 */
export declare function ingestCSV(options: IngestCSVOptions): Promise<void>;
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