import type { RpcMethods, RpcMethodName } from '..';
import type { RpcContext, RpcHandler, RpcHttpMethod, RpcType } from '../types';
/**
 * Options accepted by {@link defineRpcHandler}.
 */
export interface DefineRpcHandlerOptions {
    /**
     * HTTP method the RPC endpoint will be exposed under.
     * Defaults to `'POST'`. Use `'GET'` for read-only, cacheable endpoints;
     * `'PUT'` / `'DELETE'` for RESTful update/delete semantics.
     */
    method?: RpcHttpMethod;
}
/**
 * Default HTTP method for RPC handlers when not explicitly specified.
 */
export declare const DEFAULT_RPC_HTTP_METHOD: RpcHttpMethod;
/**
 * Defines an RPC method handler.
 *
 * @param handler - The RPC handler function.
 * @param options - Optional handler options (e.g. HTTP method).
 * @returns The handler itself, with correct types enforced and internal properties set.
 */
export declare function defineRpcHandler<Params extends Record<string, any> | undefined, Result>(handler: (params: Params, context: RpcContext) => Result | Response | Promise<Result | Response>, options?: DefineRpcHandlerOptions): RpcHandler<Params, Result>;
/**
 * Defines an RPC method handler.
 *
 * @param handler - The RPC handler function.
 * @param options - Optional handler options (e.g. HTTP method).
 * @returns The handler itself, with correct types enforced and internal properties set.
 */
export declare function defineRpcHandler<Result>(handler: (context: RpcContext) => Result | Response | Promise<Result | Response>, options?: DefineRpcHandlerOptions): RpcHandler<Result>;
/**
 * Defines an RPC method handler.
 *
 * @param handler The RPC handler function.
 * @param options Optional handler options (e.g. HTTP method).
 * @returns The handler itself, with correct types enforced and internal properties set.
 */
export declare function defineRpcHandler<T extends RpcMethods[RpcMethodName]>(handler: T, options?: DefineRpcHandlerOptions): T & {
    rpcType: RpcType;
    httpMethod: RpcHttpMethod;
};