/**
 * Type-level schema branding and inference utilities for Zod.
 * All operations are compile-time only (zero runtime cost).
 */
import type { BrandedSchema as CoreBrandedSchema, InferMessage as CoreInferMessage, InferMeta as CoreInferMeta, InferPayload as CoreInferPayload, InferResponse as CoreInferResponse, InferType as CoreInferType } from "@ws-kit/core";
import type { ZodObject } from "zod";
/**
 * Symbol for branding schemas at the type level.
 * Purely type-level; not exposed at runtime.
 * @internal
 */
export declare const SchemaTag: unique symbol;
/**
 * Schema branded with type metadata for inference.
 * Works entirely at the type level using TypeScript utility types.
 */
export interface BrandedSchema<TType extends string = string, TPayload extends unknown = unknown, TResponse extends unknown = unknown, TMeta extends Record<string, unknown> = Record<string, never>> extends CoreBrandedSchema<TType, TPayload, TResponse, TMeta> {
    readonly [SchemaTag]: {
        readonly type: TType;
        readonly payload: TPayload;
        readonly response: TResponse;
        readonly meta: TMeta;
    };
}
/**
 * Event message schema: a Zod object with message type hint.
 */
export type MessageSchema = ZodObject<any> & {
    readonly __descriptor: {
        readonly messageType: string;
        readonly kind: "event" | "rpc";
    };
};
/**
 * RPC request-response schema: a message schema with response definition.
 */
export type RpcSchema = MessageSchema & {
    readonly response: ZodObject<any>;
};
/**
 * Union of all schema types: event messages and RPC requests.
 */
export type AnySchema = (MessageSchema & BrandedSchema) | (RpcSchema & BrandedSchema);
/**
 * Extract payload type from a branded schema.
 */
export type InferPayload<S extends CoreBrandedSchema> = CoreInferPayload<S>;
/**
 * Extract response type from a branded RPC schema.
 */
export type InferResponse<S extends CoreBrandedSchema> = CoreInferResponse<S>;
/**
 * Extract message type literal from a branded schema.
 */
export type InferType<S extends CoreBrandedSchema> = CoreInferType<S>;
/**
 * Extract extended meta fields from a branded schema.
 */
export type InferMeta<S extends CoreBrandedSchema> = CoreInferMeta<S>;
/**
 * Infer full message type from a branded schema (convenience alias).
 */
export type InferMessage<S extends CoreBrandedSchema> = CoreInferMessage<S>;
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