import { MISSING_ITEM_VALUE } from '../../dimension/models/missing.models';
export declare type Permutation = Array<PermutationItem>;
export declare type PermutationItem = SinglePermutation | MultiPermutation | MissingPermutation;
export interface SinglePermutation {
    type: 'single';
    value: string;
}
export interface MultiPermutation {
    type: 'multi';
    key: string;
    value: string;
    constrainedBy: Record<string, string>;
}
export interface MissingPermutation {
    type: typeof MISSING_ITEM_VALUE;
    value: null;
}