An expandable block quotation to be sent (Bot API 10.3+).
Telegram Bot API: InputRichBlockExpandableBlockQuotation
Optional
Credit of the block.
Content of the block.
Type of the block, always 'expandable_blockquote'.
An expandable block quotation to be sent (Bot API 10.3+).
See
Telegram Bot API: InputRichBlockExpandableBlockQuotation