import { ParsedDiff, StackDiff } from './parser';
/** A CloudFormation template as a plain JSON object. */
export type CloudFormationTemplate = Record<string, unknown>;
/** One stack's before/after templates, keyed by stack name. */
export interface StackTemplatePair {
    stackName: string;
    oldTemplate: CloudFormationTemplate;
    newTemplate: CloudFormationTemplate;
}
/**
 * Diff a single stack's old and new CloudFormation templates into a `StackDiff`.
 * `oldTemplate` may be `{}` for a brand-new stack (every resource reads as an add).
 */
export declare function diffStackTemplates(stackName: string, oldTemplate: CloudFormationTemplate, newTemplate: CloudFormationTemplate): StackDiff;
/**
 * Diff one or more stacks' templates into a `ParsedDiff`, the same shape produced
 * by `parseCdkDiff`. This is the structured counterpart to the text parser.
 */
export declare function diffTemplates(pairs: StackTemplatePair[]): ParsedDiff;
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