Function editChatMemberRank

editChatMemberRank(
    client: ITelegramClient,
    params: {
        chatId: InputPeerLike;
        participantId: InputPeerLike;
        rank: string | null;
    },
): Promise<void>
Edit the custom rank (title) of a group chat participant.
Parameters
- client: ITelegramClient
- params: { chatId: InputPeerLike; participantId: InputPeerLike; rank: string | null }
  - chatId: InputPeerLike
    Chat ID
  - participantId: InputPeerLike
    ID of the user to edit the rank of
  - rank: string | null
    New rank, or null to remove it
Returns Promise<void>
- Defined in packages/core/src/highlevel/methods/chats/edit-chat-member-rank.ts:8