import { Construct } from 'constructs';
/**
 * Configuration properties for CloudWatch Transaction Search
 */
export interface CloudWatchTransactionSearchProps {
    /**
     * Sampling percentage for span indexing
     *
     * @default 1 (1% of spans indexed)
     */
    readonly samplingPercentage?: number;
    /**
     * Name of the CloudWatch Logs resource policy
     *
     * @default 'TransactionSearchXRayAccess'
     */
    readonly policyName?: string;
}
/**
 * Enables CloudWatch Transaction Search for X-Ray traces
 *
 * This construct configures account-level settings to enable cost-effective
 * collection of all X-Ray spans through CloudWatch Logs. It performs three steps:
 *
 * 1. Creates a CloudWatch Logs resource-based policy allowing X-Ray to send traces
 * 2. Configures X-Ray to send trace segments to CloudWatch Logs
 * 3. Sets the sampling percentage for span indexing (default 1%)
 *
 * The construct checks if Transaction Search is already enabled and only applies
 * configuration if needed. It's idempotent and safe to deploy multiple times.
 *
 * ## Benefits
 * - Cost-effective: Uses CloudWatch Logs pricing instead of X-Ray pricing
 * - Full visibility: All spans are collected and searchable
 * - Automatic indexing: 1% of spans indexed by default for trace summaries
 *
 * ## Usage
 * ```typescript
 * new CloudWatchTransactionSearch(this, 'TransactionSearch', {
 *   samplingPercentage: 1  // Optional: 1% is default
 * });
 * ```
 *
 * @see https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Enable-TransactionSearch.html
 */
export declare class CloudWatchTransactionSearch extends Construct {
    constructor(scope: Construct, id: string, props?: CloudWatchTransactionSearchProps);
}