import type { IR } from "./ir.js";
export interface JsonSchemaOptions {
    description?: string;
    target?: string;
    dialect?: string | null;
    /**
     * Which side of morphs and defaults to describe:
     * - `'input'` — accepted payloads: morphs emit their input shape, defaulted
     *   properties are optional (with `default` annotations).
     * - `'output'` — produced values: morphs emit their output shape, defaulted
     *   properties are required (always present after validation).
     * Unset keeps the hybrid legacy behavior (morph output, defaults optional).
     */
    io?: "input" | "output";
    fallback?: (context: {
        base: Record<string, unknown>;
    }) => unknown;
}
type JsonSchema = Record<string, unknown>;
/** Emit the requested JSON Schema dialect represented by an IR tree. */
export declare function irToJsonSchema(ir: IR, options?: JsonSchemaOptions): JsonSchema;
export {};