/**
 * @fileoverview React Provider component for the chat system.
 * Orchestrates all chat functionality including state management,
 * message loading, sending, and persistence.
 * @module components/ResearchAgent/state/chat/ChatProvider
 */
/**
 * Provider component that manages the chat system state and side effects.
 *
 * This component:
 * - Initializes chat configuration (model provider selection)
 * - Loads existing messages for a chat ID from URL params
 * - Creates new chat sessions when needed
 * - Persists guest chats to localStorage
 * - Handles initial messages from URL query params
 * - Provides the chat context to child components
 *
 * @param props - Component props
 * @param props.children - Child components that will have access to chat context
 *
 * @example
 * ```tsx
 * // In app layout
 * export default function RootLayout({ children }) {
 *   return (
 *     <ChatProvider>
 *       {children}
 *     </ChatProvider>
 *   );
 * }
 * ```
 */
export declare function ChatProvider({ children }: {
    children: React.ReactNode;
}): import("react").JSX.Element;