AddServedChat Adds a chat as served.

AddServedUser Adds a user as served.

DisableApprove Disables auto-approving for a chat.

EnableApprove Enables auto-approving for a chat.

GetChatCount Gets the count of chats.

GetServedChats Gets all served chats with chat_id < 0.

GetServedUsers Retrieves all served users.

GetUserCount Gets the count of users.

IsDisabledChat Checks if a chat is disabled.

IsServedChat Checks if a chat is served.

IsServedUser Checks if a user is served.