import { Session } from '../../index';
export type ColumnComparator<T = any> = {
    compare(a: T, b: T): number;
    compareIgnoreCase?(a: T, b: T): number;
    /**
     * @returns whether it was possible to install a compare function.
     */
    install(session: Session): boolean;
    [key: string]: any;
};
export declare const comparators: any;
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