import { Attribute, ChangedMetric, Metric, Property, Resource, Service, SpecDatabase, SpecDatabaseDiff, TypeDefinition, UpdatedAttribute, UpdatedProperty, UpdatedResource, UpdatedService, UpdatedTypeDefinition, MapDiff, Event, EventTypeDefinition, EventProperty, UpdatedEvent, UpdatedEventTypeDefinition, UpdatedEventProperty } from '@aws-cdk/service-spec-types';
export declare class DbDiff {
    private readonly db1;
    private readonly db2;
    constructor(db1: SpecDatabase, db2: SpecDatabase);
    diff(): SpecDatabaseDiff;
    diffService(a: Service, b: Service): UpdatedService | undefined;
    diffServiceEvents(a: Service, b: Service): UpdatedService['eventDiff'];
    diffServiceMetrics(a: Service, b: Service): UpdatedService['metrics'];
    diffResourceMetrics(a: Resource, b: Resource): UpdatedResource['metrics'];
    diffMetrics(a: Metric[], b: Metric[]): MapDiff<Metric, ChangedMetric> | undefined;
    private diffMetric;
    private diffMetricDimensionSets;
    private diffDimensionSet;
    diffServiceResources(a: Service, b: Service): UpdatedService['resourceDiff'];
    diffResource(a: Resource, b: Resource): UpdatedResource | undefined;
    diffAttribute(a: Attribute, b: Attribute): UpdatedAttribute | undefined;
    diffProperty(a: Property, b: Property): UpdatedProperty | undefined;
    diffResourceTypeDefinitions(a: Resource, b: Resource): UpdatedResource['typeDefinitionDiff'];
    diffTypeDefinition(a: TypeDefinition, b: TypeDefinition): UpdatedTypeDefinition | undefined;
    diffResourceEvents(a: Resource, b: Resource): UpdatedResource['events'];
    diffEvent(a: Event, b: Event): UpdatedEvent | undefined;
    diffEventTypeDefinitions(a: Event, b: Event): UpdatedEvent['typeDefinitionDiff'];
    diffEventTypeDefinition(a: EventTypeDefinition, b: EventTypeDefinition): UpdatedEventTypeDefinition | undefined;
    diffEventProperty(a: EventProperty, b: EventProperty): UpdatedEventProperty | undefined;
    /**
     * Compare event property types by stringifying them.
     * Event property types reference EventTypeDefinition, not TypeDefinition.
     */
    private eqEventPropertyType;
    private eqEventRootProperty;
    private eqEventResourcesField;
    /**
     * Stringify a generic property type for comparison.
     */
    private stringifyGenericType;
    /**
     * Tricky -- we have to deep-compare all the type references which will have different ids in
     * different databases.
     *
     * Solve it by doing a string-render and comparing those (for now).
     */
    private eqType;
}
export type DontCareAboutTypes<A extends object> = {
    [k in keyof A]: unknown;
};