/**
 * Registry-aware canonical protobuf JSON, alongside the existing generated JSON API.
 *
 * @packageDocumentation
 */
import { type AnyShape } from './any.js';
import { type MessageFns } from './core.js';
import type { Registry } from './registry.js';
/** Controls canonical protobuf JSON parsing. Unknown fields are rejected by default. */
export interface ProtoJSONOptions {
    /** Skips unknown fields and enum names instead of rejecting them. Defaults to false. */
    ignoreUnknownFields?: boolean;
}
/** Expands an Any into canonical @type JSON. Unknown types cannot be expanded. */
export declare function anyToProtoJSON(value: AnyShape, registry: Registry): unknown;
/** Packs canonical @type JSON with a registered codec. */
export declare function anyFromProtoJSON(value: unknown, registry: Registry, options?: ProtoJSONOptions): AnyShape;
/** Converts a generated message to canonical JSON without changing its existing toJSON behavior. */
export declare function toProtoJSON<T>(type: MessageFns<T, string>, message: T, registry: Registry): unknown;
/** Reads canonical JSON through the existing generated constructors. */
export declare function fromProtoJSON<T>(type: MessageFns<T, string>, value: unknown, registry: Registry, options?: ProtoJSONOptions): T;
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