import { type DesignResourceObservableFactManifestV1, type DesignResourceSubjectVariationV1, type DesignResourceVariationAxis } from "./design-resource-fact-manifest-types.js";
export declare function manifestIdentityDigest(rows: ReadonlyArray<unknown>): string;
export declare function manifestCollectionRows(manifest: DesignResourceObservableFactManifestV1): Map<string, ReadonlyArray<unknown>>;
export declare function conditionAxisValue(condition: DesignResourceObservableFactManifestV1["conditions"][number], axis: string): string;
export declare function variationValues(variation: DesignResourceSubjectVariationV1): Array<readonly [DesignResourceVariationAxis, string]>;
export declare function factCellFingerprint(cell: {
    subject_ref: string;
    target_ref: string;
    condition_ref: string;
    variation_ref: string;
    property_ref: string;
}): string;
export declare function validateBasis(row: {
    source_item_refs: string[];
    basis_refs: string[];
}, sourceItems: Map<string, string>, census: Map<string, unknown>, label: string): void;
export declare function exactAxisPairs<T extends string>(pairs: Array<{
    axis_ref: T | string;
    value_ref: string;
}>, expectedAxes: readonly T[] | string[], detail: string): Array<readonly [string, string]>;
export declare function axisFingerprint(values: Array<readonly [string, string]>): string;
export declare function cartesian<T>(groups: T[][]): T[][];
export declare function groupBy<T>(rows: T[], key: (row: T) => string): Map<string, T[]>;
export declare function refsKnown<T>(refs: string[], known: Map<string, T>, code: string, detail: string): void;
export declare function nonempty(values: unknown[], code: string): void;
export declare function unique(values: string[], code: string): void;
export declare function sameSet(actual: string[], expected: string[], code: string, detail: string): void;
export declare function sameSetValue(left: readonly string[], right: readonly string[]): boolean;
export declare function stableJson(value: unknown): string;
export declare function invalid(code: string, detail: string): never;