import { MosaicDBCoordinator } from "../../duckdb/mosaic-coordinator";
import { CosmographData } from '../config/interfaces';
export declare const isTableExists: (db: MosaicDBCoordinator, tableName: string) => Promise<boolean>;
export declare const getTableInfo: (db: MosaicDBCoordinator, tableName: string) => Promise<{
    name: string;
    type: string;
}[]>;
export declare const summarize: (db: MosaicDBCoordinator, tableName: string) => Promise<Record<string, unknown>[]>;
export declare const getColumnNames: (db: MosaicDBCoordinator, tableName: string) => Promise<string[]>;
export declare const checkColumnsExist: (db: MosaicDBCoordinator, tableName: string, columns: string[], missingColumns?: string[]) => Promise<boolean>;
export declare const filterCosmosArray: (indices: Set<number>, arr: Float32Array, stride?: number) => Float32Array;
export declare const getSortedUniquesByFrequency: <T>(data: T[]) => T[];
export declare const getUniqueValuesCount: (db: MosaicDBCoordinator, tableName: string, column: string) => Promise<CosmographData>;
export declare const getColumnValues: (db: MosaicDBCoordinator, tableName: string, column: string) => Promise<CosmographData>;
export declare const getIndicesByValue: <T>(values: T[], threshold: T, compareFn: (value: T, threshold: T) => boolean) => number[];
export declare const getQuantiledExtent: (values: number[], transform?: (min: number, max: number) => [number, number]) => [number, number];
export declare const calculateComponentExtent: (values: number[], useQuantiles?: boolean, customExtent?: [number, number]) => [number, number] | undefined;
export declare const flattenOneLevel: <T, R = T>(data?: (T | T[] | null | undefined)[], mapFn?: (value: T) => R) => R[];