import { MemoryResource } from '@rapidsai/rmm';
import { Column } from './column';
import { Table } from './table';
import { NullOrder } from './types/enums';
export { GroupByMultiple, GroupByMultipleProps } from './groupby/multiple';
export { GroupBySingle, GroupBySingleProps } from './groupby/single';
export interface GroupByBaseProps {
    include_nulls?: boolean;
    keys_are_sorted?: boolean;
    column_order?: boolean[];
    null_precedence?: NullOrder[];
}
export interface GroupByProps extends GroupByBaseProps {
    keys: Table;
}
export interface GroupByConstructor {
    readonly prototype: GroupBy;
    new (props: GroupByProps): GroupBy;
}
export interface GroupBy {
    _getGroups(values?: Table, memoryResource?: MemoryResource): {
        keys: Table;
        offsets: Int32Array;
        values?: Table;
    };
    _argmax(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _argmin(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _count(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _max(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _mean(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _median(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _min(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _nth(values: Table, memoryResource?: MemoryResource, n?: number, include_nulls?: boolean): {
        keys: Table;
        cols: Column[];
    };
    _nunique(values: Table, memoryResource?: MemoryResource, include_nulls?: boolean): {
        keys: Table;
        cols: Column[];
    };
    _std(values: Table, memoryResource?: MemoryResource, ddof?: number): {
        keys: Table;
        cols: Column[];
    };
    _sum(values: Table, memoryResource?: MemoryResource): {
        keys: Table;
        cols: Column[];
    };
    _var(values: Table, memoryResource?: MemoryResource, ddof?: number): {
        keys: Table;
        cols: Column[];
    };
    _quantile(values: Table, memoryResource?: MemoryResource, q?: number, interpolation?: number): {
        keys: Table;
        cols: [Column];
    };
    _collect_list(values: Table, memoryResource?: MemoryResource, include_nulls?: boolean): {
        keys: Table;
        cols: Column[];
    };
    _collect_set(values: Table, memoryResource?: MemoryResource, include_nulls?: boolean, nulls_equal?: boolean, nans_equal?: boolean): {
        keys: Table;
        cols: Column[];
    };
}
export declare const GroupBy: GroupByConstructor;
//# sourceMappingURL=groupby.d.ts.map