interface ErrorInjection {
	failAfter(n: number, error?: Error): void;
	failOn(pattern: RegExp, error?: Error): void;
	withLatency(minMs: number, maxMs?: number): void;
	clearInjections(): void;
}
interface MockOperation {
	type: "read" | "write" | "delete" | "list";
	key?: string;
	timestamp: number;
}
interface MockOperations {
	operations: MockOperation[];
	reads(): MockOperation[];
	writes(): MockOperation[];
	deletes(): MockOperation[];
	reset(): void;
}
interface MockKVEntry {
	value: string;
	expiration?: number;
	metadata?: unknown;
}
/**
* In-memory KVNamespace mock for unit testing.
* Map-based storage with expiration support.
*/
declare function createMockKV(initialData?: Record<string, unknown>): KVNamespace & {
	_store: Map<string, MockKVEntry>;
} & MockOperations & ErrorInjection;
export { createMockKV };