/**
 * Dual-mode Output
 * Human-readable (tables, colors, spinners) vs --json (structured stdout).
 */
import { Ora } from 'ora';
export declare function setJsonMode(enabled: boolean): void;
export declare function isJsonMode(): boolean;
/**
 * Quiet mode (--quiet/-q) suppresses non-essential human output: info(),
 * warn(), spinners, and the data fields under success(). Errors and the
 * one-line success message always print. JSON mode output is NEVER
 * affected by quiet — machine consumers get the full payload.
 */
export declare function setQuietMode(enabled: boolean): void;
export declare function isQuietMode(): boolean;
/** Verbose mode (--verbose/-v) enables debug() lines on stderr. */
export declare function setVerbose(enabled: boolean): void;
export declare function isVerbose(): boolean;
/** Dim '[debug] …' line to stderr; only when verbose and not in JSON mode. */
export declare function debug(message: string): void;
export declare function success(message: string, data?: any): void;
export declare function error(message: string, details?: any): void;
export declare function info(message: string): void;
export declare function warn(message: string): void;
/** Remind user that subgraph data lags behind on-chain state after writes */
export declare function subgraphLagWarning(): void;
export declare function table(headers: string[], rows: string[][]): void;
export declare function json(data: any): void;
export declare function spinner(message: string): Ora;
/**
 * Print an aligned "Key:  value" block, e.g. a pre-send transaction summary.
 * Keys are padded to the longest key so values line up; undefined values are
 * skipped. No-op in JSON mode (callers emit structured payloads separately).
 */
export declare function keyValueBlock(title: string | null, fields: Record<string, string | number | undefined>): void;