/**
 * Redaction of query values for the log sink. SQL text is left to its
 * producer: Cube generates it with placeholders, and cubesql attaches a
 * redacted twin (`redactedQuery`, `redactedError`) beside a client statement,
 * which the sink swaps in. Literals a data model inlines on purpose (a security
 * context value, a date range) stay.
 */
import type { LoggerFn, LoggerFnParams } from './logger';
export declare const REDACTED = "redacted";
/**
 * A copy of log event params with query values redacted: `values` of a filter
 * leaf, statement parameters (`values`, `params`, `query_values`) next to a
 * `query` / `sql` or a `queryKeyMd5`, the params of `[sql, params, ...]`
 * tuples anywhere, the rows of an inline table, and `query` / `error` replaced
 * by the redacted twin cubesql attached. The input is never mutated.
 */
export declare function redactLogParams<T extends LoggerFnParams>(params: T): T;
/**
 * Wraps the log sink so every event it writes has its query values redacted.
 * Wrap the sink itself, not the wrappers around it: the agent collector and
 * telemetry forward the original event, and must keep doing so.
 */
export declare function withLogRedaction(logger: LoggerFn): LoggerFn;
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