Message is an animation, information about the animation.
 
Message is an audio file, information about the file
 
Signature of the post author for messages in channels, or the custom title of an anonymous group administrator
 
Service message: user boosted the chat
 
Unique identifier of the business connection from which the message was received.
 
Caption for the animation, audio, document, paid media, photo, video or voice
 
For messages with a caption, special entities like usernames, URLs, bot commands, etc.
 
Service message: the channel has been created.
 
Chat the message belongs to
 
Service message: chat background set
 
Service message: a chat was shared with the bot
 
The domain name of the website on which the user has logged in
 
Message is a shared contact, information about the contact
 
Date the message was sent in Unix time.
 
Service message: the chat photo was deleted
 
Message is a dice with random value
 
Message is a general file, information about the file
 
Date the message was last edited in Unix time
 
Unique identifier of the message effect added to the message
 
For text messages, special entities like usernames, URLs, bot commands, etc.
 
Information about the message that is being replied to, which may come from another chat or forum topic
 
Service message: forum topic closed
 
Service message: forum topic created
 
Service message: forum topic edited
 
Service message: forum topic reopened
 
Information about the original message for forwarded messages
 
Sender of the message; may be empty for messages sent to channels.
 
Message is a game, information about the game
 
Service message: the 'General' forum topic hidden
 
Service message: the 'General' forum topic unhidden
 
The message is a scheduled giveaway message
 
Service message: a giveaway without public winners was completed
 
Service message: a scheduled giveaway was created
 
A giveaway with public winners was completed
 
Service message: the group has been created
 
True, if the message media is covered by a spoiler animation
 
True, if the message can't be forwarded
 
Message is an invoice for a 
payment, information about the invoice.
 
True, if the message is a channel post that was automatically forwarded to the connected discussion group
 
True, if the message was sent by an implicit action, for example, as an away or a greeting business message, or as a scheduled message
 
True, if the message is sent to a forum topic
 
A member was removed from the group, information about them (this member may be the bot itself)
 
Options used for link preview generation for the message, if it is a text message and link preview options were changed
 
Message is a shared location, information about the location
 
The unique identifier of a media message group this message belongs to
 
Service message: auto-delete timer settings changed in the chat
 
Unique message identifier inside this chat.
 
Unique identifier of a message thread to which the message belongs; for supergroups only
 
The supergroup has been migrated from a group with the specified identifier
 
The group has been migrated to a supergroup with the specified identifier.
 
New members that were added to the group or supergroup and information about them (the bot itself may be one of these members)
 
A chat photo was change to this value
 
A chat title was changed to this value
 
Message is a general file, information about the file
 
Message is a photo, available sizes of the photo
 
Specified message was pinned.
 
Message is a native poll, information about the poll
 
For replies that quote part of the original message, the quoted part of the message
 
Message is a service message about a refunded payment, information about the payment.
 
Inline keyboard attached to the message.
 
For replies in the same chat and message thread, the original message.
 
For replies to a story, the original story
 
If the sender of the message boosted the chat, the number of boosts added by the user
 
The bot that actually sent the message on behalf of the business account.
 
Sender of the message when sent on behalf of a chat.
 
True, if the caption must be shown above the message media
 
Message is a sticker, information about the sticker
 
Message is a forwarded story
 
Message is a service message about a successful payment, information about the payment
 
Service message: the supergroup has been created.
 
For text messages, the actual UTF-8 text of the message
 
Service message: users were shared with the bot
 
Message is a venue, information about the venue.
 
Bot through which the message was sent
 
Message is a video, information about the video
 
Service message: video chat ended
 
Service message: new participants invited to a video chat
 
Service message: video chat scheduled
 
Service message: video chat started
 
Message is a 
video note, information about the video message
 
Message is a voice message, information about the file
 
Service message: data sent by a Web App
 
Service message: the user allowed the bot to write messages after adding it to the attachment or side menu, launching a Web App from a link,
 or accepting an explicit request from a Web App sent by the method 
requestWriteAccess