import { ObservabilityOptions } from '../types';
type TrpcProcedureType = 'query' | 'mutation' | 'subscription';
type TrpcMiddlewareOpts = {
    path: string;
    type: TrpcProcedureType;
    ctx: unknown;
    next: (opts?: {
        ctx?: unknown;
    }) => Promise<{
        ok: boolean;
        [k: string]: unknown;
    }>;
    input: unknown;
};
/**
 * tRPC middleware for auto-api-observe.
 * Pass this to `t.middleware()` (tRPC v10+).
 *
 * @example
 * import { createTrpcObservabilityMiddleware } from 'auto-api-observe';
 *
 * const isObserved = t.middleware(
 *   createTrpcObservabilityMiddleware({ apiKey: process.env.APILENS_KEY })
 * );
 *
 * // Apply to all procedures:
 * const publicProcedure = t.procedure.use(isObserved);
 */
export declare function createTrpcObservabilityMiddleware(options?: ObservabilityOptions): (opts: TrpcMiddlewareOpts) => Promise<{
    ok: boolean;
    [k: string]: unknown;
}>;
export {};
//# sourceMappingURL=trpc.d.ts.map