import { GrouparooModel } from "../models/GrouparooModel";
import { Property, PropertyTypes } from "../models/Property";
export declare namespace TableSpeculation {
    function isUniqueColumn(columnName: string): boolean;
    function columnType(columnName: string, samples?: any[], defaultDatabaseType?: typeof PropertyTypes[number]): typeof PropertyTypes[number];
    function suggestKey(key: string, model: GrouparooModel, existingProperties: Property[]): string;
}