/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Types of user activities that can be tracked
 */
export declare enum ActivityType {
    USER_INPUT_START = "user_input_start",
    USER_INPUT_END = "user_input_end",
    MESSAGE_ADDED = "message_added",
    TOOL_CALL_SCHEDULED = "tool_call_scheduled",
    TOOL_CALL_COMPLETED = "tool_call_completed",
    STREAM_START = "stream_start",
    STREAM_END = "stream_end",
    HISTORY_UPDATED = "history_updated",
    MANUAL_TRIGGER = "manual_trigger"
}
