import { type BaselineError, type CapabilityBaselineFile, type CapabilityBaselineRow } from './types.js';
export declare function validateRowShape(row: CapabilityBaselineRow): {
    readonly ok: true;
} | {
    readonly ok: false;
    readonly error: BaselineError;
};
export declare function validateBaselineFile(file: CapabilityBaselineFile): {
    readonly ok: true;
} | {
    readonly ok: false;
    readonly error: BaselineError;
};
export declare function assertSignedBySquabbyZ(file: CapabilityBaselineFile): {
    readonly ok: true;
} | {
    readonly ok: false;
    readonly error: BaselineError;
};