/**
 * A function that wraps a query function, returning a decorated version.
 * Used to inject logging, caching, profiling, etc. into all queries globally.
 *
 * @param queryName - The name of the query property (e.g. "queryEVaultInfoFull")
 * @param fn - The original query function
 * @returns A wrapped version of the query function
 */
export interface BuildQueryContext {
    /**
     * Returns a deterministic cache key, or `null` when this invocation must run
     * without caching. Custom builders must preserve `null` as a no-cache signal.
     */
    getCacheKey: (args: unknown[]) => string | null;
}
export type BuildQueryFn = <T extends (...args: any[]) => Promise<any>>(queryName: string, fn: T, target: object, context?: BuildQueryContext) => T;
export interface QueryCacheConfig {
    enabled?: boolean;
    ttlMs?: number;
    failureTtlMs?: number;
}
export declare function normalizeQueryKeyValue(value: unknown): unknown;
export declare function normalizeQueryKeySet(value: unknown[]): unknown[];
export declare function normalizeQueryKeyObjectSets(value: object): object;
export declare function serializeQueryArgs(args: unknown[]): string | null;
export declare function getEulerSdkQueryKey(_queryName: string, args: unknown[]): string | null;
export declare function createQueryCacheBuildQuery(config?: QueryCacheConfig): BuildQueryFn;
/**
 * Applies a buildQuery decorator to all `query*` properties on a target object.
 * Call this at the end of a constructor to decorate all queries.
 */
export declare function applyBuildQuery(target: object, buildQuery: BuildQueryFn): void;
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