/**
 * CLI-specific hydration for o11y display.
 *
 * Node.js revivers that use `Buffer.from()` for base64 decoding and add
 * `util.inspect.custom` to ClassInstanceRef for pretty CLI output.
 */
import { inspect } from 'node:util';
import { type Revivers } from '@workflow/core/serialization-format';
/**
 * A function that resolves an encryption key for a run, or null to skip
 * decryption. Accepts a runId; the resolver is responsible for looking
 * up the WorkflowRun internally (with caching) if the World needs it.
 */
export type EncryptionKeyResolver = ((runId: string) => Promise<Uint8Array | undefined>) | null;
export { CLASS_INSTANCE_REF_TYPE, ClassInstanceRef, ENCRYPTED_PLACEHOLDER, extractStreamIds, isClassInstanceRef, isEncryptedData, isStreamId, isStreamRef, type Revivers, STREAM_REF_TYPE, type StreamRef, truncateId, } from '@workflow/core/serialization-format';
/**
 * Placeholder object for encrypted data fields in CLI output.
 *
 * Uses `util.inspect.custom` to render as a styled, unquoted string
 * (e.g., dim yellow "🔒 Encrypted") instead of a plain quoted string.
 * Also provides `toJSON()` for `--json` output.
 */
declare class EncryptedDataRef {
    [inspect.custom](): string;
    toJSON(): string;
    toString(): string;
}
/** Check if a value is an EncryptedDataRef (for custom table formatting in CLI) */
export declare function isEncryptedRef(value: unknown): value is EncryptedDataRef;
/**
 * Placeholder object for expired data fields in CLI output.
 *
 * Uses `util.inspect.custom` to render as a styled, unquoted string
 * (e.g., dim gray "<data expired>") instead of a raw stub object.
 * Also provides `toJSON()` for `--json` output.
 */
declare class ExpiredDataRef {
    [inspect.custom](): string;
    toJSON(): string;
    toString(): string;
}
/** Check if a value is an ExpiredDataRef (for custom table formatting in CLI) */
export declare function isExpiredRef(value: unknown): value is ExpiredDataRef;
/**
 * The set of revivers used by CLI inspect output.
 *
 * Built on top of `getCommonRevivers()` from `@workflow/core` so that the
 * CLI stays in sync with the runtime's reviver set automatically. Without
 * this, every new reviver added to core (e.g. `FatalError`,
 * `RetryableError`, the built-in `Error` subclasses) would silently
 * disappear from CLI output: devalue throws "Unknown type X" for
 * unrecognized reduced types, and `hydrateResourceIO` swallows that error
 * and surfaces the raw `Uint8Array` payload to consumers, which then
 * shows up as `step.error` / `run.error` byte dumps instead of usable
 * `{ message, stack, … }` objects.
 *
 * On top of the common set we layer:
 *   - A `toJSON` shim on each Error reviver so non-enumerable
 *     `Error.prototype` fields survive `JSON.stringify` for `--json` output
 *     while leaving `util.inspect` rendering untouched
 *   - `observabilityRevivers` for streams / step+workflow function refs
 *   - CLI-specific overrides that produce display-friendly placeholders
 *     for `Class` / `Instance` (the runtime versions need full class
 *     identity which the CLI doesn't have access to)
 */
export declare function getCLIRevivers(): Revivers;
/**
 * Hydrate the serialized data fields of a resource for CLI display.
 *
 * When `encryptorResolver` is null (default / no --decrypt flag), encrypted
 * fields are shown as styled "🔒 Encrypted" placeholders via EncryptedDataRef.
 *
 * When `encryptorResolver` is provided (--decrypt flag), encrypted fields
 * are decrypted before hydration so the actual user data is displayed.
 */
export declare function hydrateResourceIO<T>(resource: T, keyResolver?: EncryptionKeyResolver): Promise<T>;
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