MessageChain

await sdk.message(msg)
  .ifFromOthers()
  .matchText('hello')
  .replyText('Hi!')
  .execute()  // Must call execute()

MessageChain(message: Message, sender: MessageSender): MessageChain

do(handler: (message: Message) => void | Promise<void>): this

execute(): Promise<void>

ifFromMe(): this

ifFromOthers(): this

ifGroupChat(): this

ifNotReaction(): this

ifReaction(): this

ifUnread(): this

matchText(pattern: string | RegExp): this

replyImage(images: string | string[] | Mapper<Message, string | string[]>): this

replyText(text: string | Mapper<Message, string>): this

when(predicate: Predicate<Message>): this