import type { AdaptiveCard } from './models.js';
import { ValidationSeverity } from './enums.js';
export { ValidationSeverity };
/** A single validation finding. */
export interface ValidationIssue {
    readonly severity: ValidationSeverity;
    /** JSON path to the problematic property, e.g. `"body[0].url"`. */
    readonly path: string;
    /** Short machine-readable code, e.g. `"MISSING_IMAGE_URL"`. */
    readonly code: string;
    /** Human-readable description. */
    readonly message: string;
}
/** Thrown by {@link validateAndThrow} when errors are found. */
export declare class AdaptiveCardValidationError extends Error {
    readonly errors: ValidationIssue[];
    /** @param errors The list of validation errors. */
    constructor(errors: ValidationIssue[]);
}
/** Validate a card and return all findings (errors + warnings). */
export declare function validate(card: AdaptiveCard): ValidationIssue[];
/**
 * Validate a card and throw {@link AdaptiveCardValidationError} if any
 * error-severity issues are found.  Warnings are silently ignored.
 */
export declare function validateAndThrow(card: AdaptiveCard): void;
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