import type { IDataObject, INodePropertyOptions } from 'n8n-workflow';
export declare const FILTER_OPERATOR_OPTIONS: INodePropertyOptions[];
export declare const COLUMN_TYPE_OPERATORS: Record<string, readonly string[]>;
export declare function isUnfilterableColumnType(columnType: string): boolean;
export declare function getOperatorOptionsForColumnType(columnType: string | undefined): INodePropertyOptions[];
export interface UnsupportedOperatorRule {
    columnId: string;
    columnType: string;
    operator: string;
    supported: readonly string[];
}
export declare function findUnsupportedOperatorRules(rules: FilterRuleInput[], columns: FilterColumnMeta[]): UnsupportedOperatorRule[];
export declare function formatUnsupportedOperatorMessage(rules: UnsupportedOperatorRule[]): string;
export interface FilterRuleInput {
    columnId: string;
    operator: string;
    value?: string;
}
export interface FilterColumnMeta {
    id: string;
    type: string;
    settings_str?: string;
    capabilities?: {
        calculated?: {
            function?: string;
        } | null;
    } | null;
}
export declare function findRollupStatusRuleColumns(rules: FilterRuleInput[], columns: FilterColumnMeta[]): string[];
export declare function parseLabelIndexes(settingsStr?: string): Record<string, number>;
export declare function buildFilterRules(rules: FilterRuleInput[], columns: FilterColumnMeta[]): IDataObject[];