/**
 * Schema reference parsing and cache lookup.
 *
 * Current support:
 * - bare schema SAID
 * - `sad:{said}` references
 * - HTTP(S) OOBI URLs that must be resolved by `Oobiery`
 *
 * DID URL dereferencing is intentionally represented but not implemented yet.
 */
import type { Schemer } from "../core/scheming.js";
import type { Habery } from "./habbing.js";
export type SchemaReference = {
    kind: "bare";
    said: string;
} | {
    kind: "sad";
    said: string;
} | {
    kind: "oobi";
    url: string;
    said?: string;
} | {
    kind: "did";
    url: string;
};
/** Parse one schema reference into the supported resolver contract. */
export declare function parseSchemaReference(reference: string): SchemaReference;
/** Resolve a schema reference only from the local schema cache. */
export declare function resolveCachedSchema(hby: Habery, reference: string): Schemer | null;
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