import { Accessor } from "./ColumnDef";
import { AggregationConfig } from "./AggregationTypes";
import ColumnDef from "./ColumnDef";
import Row from "./Row";
import type { RowData } from "./Row";
export type PivotValueConfig<TData extends RowData = Row> = {
    accessor: Accessor<TData>;
    aggregation: AggregationConfig;
    label?: string;
};
export type PivotConfig<TData extends RowData = Row> = {
    /** Row dimension accessors (0+). Multi-level dims → one flat row per combination. */
    rows: Accessor<TData>[];
    /** Column dimension accessors (0+). Distinct values become dynamic header groups. */
    columns: Accessor<TData>[];
    /** Value/measure configs (required, length >= 1). */
    values: PivotValueConfig<TData>[];
    /** Total column(s) aggregating across column dimensions. Default true. */
    showRowTotals?: boolean;
    /** Total row aggregating across row dimensions. Default true. */
    showColumnTotals?: boolean;
    /** Grand-total cell(s) on the totals row/column. Default true. */
    showGrandTotal?: boolean;
};
/** Marker on total rows for styling / identification. */
export declare const PIVOT_IS_TOTAL_KEY = "__pivotIsTotal";
/** Prefix for generated pivot measure accessors. */
export declare const PIVOT_ACCESSOR_PREFIX = "__pivot:";
/** Label used when a dimension value is null/undefined. */
export declare const PIVOT_BLANK_LABEL = "(blank)";
export type PivotResult = {
    rows: Row[];
    headers: ColumnDef[];
};