@juspay/neurolink/dist/server/utils/redaction.d.ts

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import type { RedactionConfig, DataStreamEvent } from "../../types/index.js";
/**
 * Redact sensitive data from a stream chunk.
 *
 * IMPORTANT: Redaction is DISABLED by default. You must set `config.enabled = true`
 * to enable redaction. This is a security feature that requires explicit opt-in.
 *
 * @param chunk - The stream chunk to redact
 * @param config - Redaction configuration (enabled: false by default)
 * @returns The redacted chunk with sensitive data removed, or original if disabled
 *
 * @example
 * ```typescript
 * // Redaction disabled by default - returns chunk unchanged
 * const unchanged = redactStreamChunk(chunk);
 *
 * // Enable redaction explicitly
 * const redacted = redactStreamChunk(chunk, { enabled: true });
 * // Sensitive fields replaced with "[REDACTED]"
 * ```
 *
 * @example
 * ```typescript
 * // With custom configuration (must enable first)
 * const redacted = redactStreamChunk(chunk, {
 *   enabled: true,
 *   additionalFields: ["customSecret"],
 *   preserveFields: ["result"], // Don't redact result
 * });
 * ```
 */
export declare function redactStreamChunk(chunk: DataStreamEvent, config?: RedactionConfig): DataStreamEvent;
/**
 * Create a redaction transform function for streams.
 *
 * IMPORTANT: Redaction is DISABLED by default. You must set `config.enabled = true`
 * to enable redaction. If not enabled, the returned function passes chunks through unchanged.
 *
 * @param config - Redaction configuration
 * @returns A transform function for stream chunks
 *
 * @example
 * ```typescript
 * // Redaction disabled - chunks pass through unchanged
 * const redactor = createStreamRedactor();
 * const unchanged = redactor(chunk); // Returns original chunk
 *
 * // Enable redaction
 * const redactor = createStreamRedactor({ enabled: true });
 * const redactedStream = stream.pipeThrough(new TransformStream({
 *   transform: (chunk, controller) => {
 *     controller.enqueue(redactor(chunk));
 *   }
 * }));
 * ```
 *
 * @example
 * ```typescript
 * // With custom options
 * const redactor = createStreamRedactor({
 *   enabled: true,
 *   redactToolArgs: true,
 *   redactToolResults: true,
 *   additionalFields: ["internalId"],
 * });
 * ```
 */
export declare function createStreamRedactor(config?: RedactionConfig): <T>(chunk: T) => T;