export interface RedactSecretsOptions {
    readonly fallback: string;
    readonly secrets?: Iterable<string>;
    readonly environment?: Readonly<Record<string, string | undefined>>;
    readonly maxChars?: number;
}
export declare const REDACTED_DIAGNOSTIC_MAX_CHARS = 400;
export declare function isSensitiveEnvironmentName(name: string): boolean;
/**
 * Produce one bounded, single-line diagnostic with explicit, environment,
 * and common inline credential forms scrubbed. Environment values are scrubbed
 * once they are distinctive enough to avoid erasing ordinary one-character text.
 */
export declare function redactSecrets(value: unknown, options: RedactSecretsOptions): string;
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