export interface SlackLogSink {
    debug?(message: string, metadata?: Record<string, unknown>): void;
    info?(message: string, metadata?: Record<string, unknown>): void;
    warn?(message: string, metadata?: Record<string, unknown>): void;
    error?(message: string, metadata?: Record<string, unknown>): void;
}
/** Redact configured and recognizable Slack credentials from arbitrary text. */
export declare function redactSlackSecretText(text: string, knownSecrets?: readonly string[]): string;
/** Render one error message without invoking user-controlled accessors or coercion hooks. */
export declare function redactSlackErrorMessage(error: unknown, knownSecrets?: readonly string[]): string;
/** Match a trusted prototype without invoking Proxy prototype traps. */
export declare function isSafeSlackPrototypeInstance(value: unknown, prototype: object): boolean;
/** Read one data property through a bounded, Proxy-free prototype walk. */
export declare function readSafeSlackDataProperty(value: unknown, key: string): unknown;
/**
 * Wrap a logger at the adapter boundary so future log sites are safe even when
 * they pass nested errors, causes, request objects, URLs, or stacks.
 */
export declare function createSecretSafeSlackLogger(logger: SlackLogSink | undefined, knownSecrets: readonly string[]): SlackLogSink | undefined;
//# sourceMappingURL=log-redaction.d.ts.map