/**
 * Wire 0.2 verification warning codes and collector (v0.12.0-preview.1)
 *
 * Warning codes are append-only stable string literals. Warnings do NOT affect
 * the allow/deny decision unless caller policy requires it.
 *
 * Warnings MUST be sorted by (pointer ascending, code ascending);
 * undefined pointer sorts before any string value.
 *
 * RFC 6901 JSON Pointer escaping: '/' in keys is escaped as '~1', '~' as '~0'.
 */
import type { VerificationWarning } from '@peac/kernel';
/** type claim does not match any registered type in the receipt_types registry */
export declare const WARNING_TYPE_UNREGISTERED: "type_unregistered";
/** Unknown extension key was encountered and preserved (no schema validation) */
export declare const WARNING_UNKNOWN_EXTENSION: "unknown_extension_preserved";
/** occurred_at is after iat by more than zero but within the tolerance window */
export declare const WARNING_OCCURRED_AT_SKEW: "occurred_at_skew";
/** JWS typ header was absent; interop mode accepted the token without typ */
export declare const WARNING_TYP_MISSING: "typ_missing";
/** Registered type has a mapped extension group, but that group is absent from extensions */
export declare const WARNING_EXTENSION_GROUP_MISSING: "extension_group_missing";
/** Registered type has a mapped extension group, but a different registered group is present instead */
export declare const WARNING_EXTENSION_GROUP_MISMATCH: "extension_group_mismatch";
/**
 * Sort warnings by (pointer ascending, code ascending).
 * Warnings with undefined pointer sort before those with a defined pointer.
 *
 * @param warnings - Array of VerificationWarning objects to sort
 * @returns New array sorted in canonical order
 */
export declare function sortWarnings(warnings: VerificationWarning[]): VerificationWarning[];
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