/**
 * Builds a workflow suspension log message based on the counts of steps, hooks, and waits.
 * @param runId - The workflow run ID
 * @param stepCount - Number of steps to be enqueued
 * @param hookCount - Number of hooks to be enqueued
 * @param waitCount - Number of waits to be enqueued
 * @returns The formatted log message or null if all counts are 0
 */
export declare function buildWorkflowSuspensionMessage(runId: string, stepCount: number, hookCount: number, waitCount: number): string | null;
/**
 * Generates a stream ID for a workflow run.
 * User-defined streams include a "user" segment for isolation from future system-defined streams.
 * Namespaces are base64-encoded to handle characters not allowed in Redis key names.
 *
 * @param runId - The workflow run ID
 * @param namespace - Optional namespace for the stream
 * @returns The stream ID in format: `strm_{ULID}_user_{base64(namespace)?}`
 */
export declare function getWorkflowRunStreamId(runId: string, namespace?: string): string;
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