import { Logo, LogoRef } from '../../../core';
/**
 * The V2 beat envelope (LargeTransactionV2 onward) sends an entity logo as an opaque guid instead
 * of V1's named `institution_guid` / `merchant_guid` / `category_guid` fields. The entity is
 * carried only by the guid's prefix, so this maps a guid back onto the named `Logo` shape the
 * existing renderers (`SubHeader`, mxui logo components) already understand.
 *
 * An unrecognized prefix returns `undefined` rather than guessing: rendering a merchant logo for
 * an institution guid would silently show the wrong image.
 */
export declare const logoFromEntityGuid: (guid?: string, alt?: string) => Logo | undefined;
/**
 * Resolves a V2 `LogoRef` (header or row) onto the named `Logo` shape. The one mapping both the
 * header and the rows go through, so the two can never disagree about precedence:
 *
 * - `icon` becomes V1's `logo_name` / `logo_color` and wins over `guid`, as `logo_name` does in
 *   `SubHeader`.
 * - Otherwise `guid` resolves by prefix (`logoFromEntityGuid`). For an `MCH-` guid, a `CAT-`
 *   `fallback_guid` becomes the merchant's `category_guid`: `MerchantLogo` draws that category as a
 *   tile when the merchant image fails to load, and without it the tile is the Uncategorized icon.
 *   Only a category fallback is applied, because a category tile is the only fallback
 *   `MerchantLogo` has.
 *
 * `fallbackAlt` names the logo when the ref carries no `alt` (rows pass their `primary_text`).
 */
export declare const logoFromRef: (ref?: LogoRef, fallbackAlt?: string) => Logo | undefined;