export interface PostCreateConversationRequest {
    conversation_user_ids: string[];
}
export interface PostCreateConversationResponse {
    conversation_id: string;
}
export interface PostMessageRequest {
    conversation_id: string;
    data: CreateTextMessageData | CreateVideoMessageData | CreateImageMessageData;
}
export interface PostGetDeletedMessagesRequest {
    messages_deleted_since_time?: string;
    conversation_id: string;
}
export interface PostDeletedMessagesResponse {
    deleted_message_ids: string[];
    checked_at_time: string;
}
export interface PostMessageResponse {
    message_id: string;
}
export interface CreateTextMessageData {
    type: 'text';
    text: string;
}
export interface CreateVideoMessageData {
    type: 'video';
    video_url: string;
}
export interface CreateImageMessageData {
    type: 'image';
    image_url: string;
}
export interface GetLatestMessageFromAllClientsResponse {
    conversations: {
        conversation_id: string;
        latest_message: Message;
        last_read_message_id?: string;
    }[];
}
export interface PostGetMessagesRequest {
    conversation_id: string;
    less_than_index?: string;
    limit: number;
}
export interface PostGetMessagesResponse {
    messages: Message[];
    last_read_message_id?: string;
    has_more: boolean;
}
export interface PostSetConversationReadAtRequest {
    conversation_id: string;
    last_read_message_id: string;
}
export interface Conversation {
    conversation_id: string;
    user_ids: string[];
}
export type MessageType = 'text' | 'video' | 'image';
export interface MessageBase {
    id: string;
    sender_user_id: string;
    conversation_id: string;
    type: MessageType;
    created_at: string;
}
export interface TextMessage extends MessageBase {
    type: 'text';
    text: string;
}
export interface VideoMessage extends MessageBase {
    type: 'video';
    video_url: string;
}
export interface ImageMessage extends MessageBase {
    type: 'image';
    image_url: string;
}
export type Message = TextMessage | VideoMessage | ImageMessage;
export declare const isMessage: (message?: any) => message is Message;
export interface NewMessageChatUpdate {
    type: 'new-message';
    message: Message;
}
export interface MessageDeletedChatUpdate {
    type: 'message-deleted';
    message_id: string;
}
export interface NewConversationChatUpdate {
    type: 'new-conversation';
    conversation_id: string;
    conversation_users: string[];
}
export type HevyChatUpdateMobilePushData = NewMessageChatUpdate | MessageDeletedChatUpdate | NewConversationChatUpdate;
export declare const isHevyChatUpdatePush: (message?: any) => message is HevyChatUpdateMobilePushData;