/**
 * Pure helper for resolving a running runtime handle by wallet address.
 *
 * Extracted from `getRuntimeHandleByAddressOrRespond` in `src/index.ts` so
 * both the HTTP route layer (S4) and the gateway shim (S6) can share the
 * lookup logic without the respond-on-error side-effect.
 */
import type { RuntimeHandle } from "../../runtime/run.js";
/**
 * Discriminated result of a handle lookup.
 *
 * Use `found` to narrow:
 * - `true`  → `runtimeId` and `handle` are available.
 * - `false` → `code` is always `"NOT_FOUND"` and `message` describes the miss.
 */
export type LookupResult = {
    found: true;
    runtimeId: string;
    handle: RuntimeHandle;
} | {
    found: false;
    code: "NOT_FOUND";
    message: string;
};
/**
 * Find a running runtime by lowercased wallet address.
 *
 * Matches case-insensitively — wallet addresses from the runtime's strategy
 * config may differ in capitalisation from caller-supplied values.
 *
 * @param handles  The live map maintained by the plugin (`runtimeHandles`).
 * @param address  Wallet address to search for. Case is normalised internally.
 * @returns        A discriminated union; never throws.
 */
export declare function findRuntimeHandleByAddress(handles: Map<string, RuntimeHandle>, address: string): LookupResult;
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