Here is a list of all documented variables with links to the class documentation for each member:

- b -

• background_ : td::td_api::chat, td::td_api::chatBackground, td::td_api::diceStickersSlotMachine, td::td_api::inputBackgroundLocal, td::td_api::messageChatSetBackground, td::td_api::setBackground, td::td_api::setChatBackground, td::td_api::themeSettings, td::td_api::updateChatBackground, td::td_api::updateSelectedBackground
• background_color_ : td::td_api::themeParameters
• background_fill_ : td::td_api::chatPhotoSticker
• background_id_ : td::td_api::inputBackgroundRemote, td::td_api::removeBackground
• background_name_ : td::td_api::internalLinkTypeBackground
• backgrounds_ : td::td_api::backgrounds
• bank_card_number_ : td::td_api::getBankCardInfo
• bank_statement_ : td::td_api::inputPassportElementBankStatement, td::td_api::passportElementBankStatement
• banned_count_ : td::td_api::supergroupFullInfo
• banned_until_date_ : td::td_api::banChatMember, td::td_api::chatMemberStatusBanned
• banned_user_count_ : td::td_api::chatStatisticsAdministratorActionsInfo
• base_language_pack_id_ : td::td_api::languagePackInfo
• basic_group_ : td::td_api::updateBasicGroup
• basic_group_full_info_ : td::td_api::updateBasicGroupFullInfo
• basic_group_id_ : td::td_api::chatTypeBasicGroup, td::td_api::createBasicGroupChat, td::td_api::getBasicGroup, td::td_api::getBasicGroupFullInfo, td::td_api::messageChatUpgradeFrom, td::td_api::updateBasicGroupFullInfo
• big_ : td::td_api::chatPhotoInfo, td::td_api::profilePhoto
• bio_ : td::td_api::chatJoinRequest, td::td_api::groupCallParticipant, td::td_api::setBio, td::td_api::userFullInfo
• birthdate_ : td::td_api::personalDetails
• block_list_ : td::td_api::chat, td::td_api::getBlockedMessageSenders, td::td_api::setMessageSenderBlockList, td::td_api::storyViewer, td::td_api::updateChatBlockList, td::td_api::userFullInfo
• boost_count_ : td::td_api::chatBoostStatus
• boost_url_ : td::td_api::chatBoostStatus
• boosts_ : td::td_api::foundChatBoosts
• bot_administrator_rights_ : td::td_api::keyboardButtonTypeRequestChat
• bot_commands_ : td::td_api::basicGroupFullInfo, td::td_api::supergroupFullInfo
• bot_info_ : td::td_api::userFullInfo
• bot_is_member_ : td::td_api::keyboardButtonTypeRequestChat
• bot_user_id_ : td::td_api::allowBotToSendMessages, td::td_api::attachmentMenuBot, td::td_api::botCommands, td::td_api::canBotSendMessages, td::td_api::connectedWebsite, td::td_api::getAttachmentMenuBot, td::td_api::getBotInfoDescription, td::td_api::getBotInfoShortDescription, td::td_api::getBotName, td::td_api::getInlineQueryResults, td::td_api::getPassportAuthorizationForm, td::td_api::getWebAppLinkUrl, td::td_api::getWebAppUrl, td::td_api::inputMessageGame, td::td_api::internalLinkTypePassportDataRequest, td::td_api::loginUrlInfoRequestConfirmation, td::td_api::messageSponsorTypeBot, td::td_api::openWebApp, td::td_api::reorderBotActiveUsernames, td::td_api::searchWebApp, td::td_api::sendBotStartMessage, td::td_api::sendWebAppCustomRequest, td::td_api::sendWebAppData, td::td_api::setBotInfoDescription, td::td_api::setBotInfoShortDescription, td::td_api::setBotName, td::td_api::setBotProfilePhoto, td::td_api::toggleBotIsAddedToAttachmentMenu, td::td_api::toggleBotUsernameIsActive
• bot_username_ : td::td_api::internalLinkTypeAttachmentMenuBot, td::td_api::internalLinkTypeBotAddToChannel, td::td_api::internalLinkTypeBotStart, td::td_api::internalLinkTypeBotStartInGroup, td::td_api::internalLinkTypeGame, td::td_api::internalLinkTypeSideMenuBot, td::td_api::internalLinkTypeWebApp
• bots_ : td::td_api::updateAttachmentMenuBots
• bottom_color_ : td::td_api::backgroundFillGradient
• browser_ : td::td_api::connectedWebsite
• button_ : td::td_api::answerInlineQuery, td::td_api::inlineQueryResults
• button_color_ : td::td_api::themeParameters
• button_id_ : td::td_api::getLoginUrl, td::td_api::getLoginUrlInfo, td::td_api::messageChatShared, td::td_api::messageUserShared, td::td_api::shareChatWithBot, td::td_api::shareUserWithBot
• button_text_ : td::td_api::messageWebAppDataReceived, td::td_api::messageWebAppDataSent, td::td_api::sendWebAppData
• button_text_color_ : td::td_api::themeParameters
• by_chat_ : td::td_api::storageStatistics
• by_file_type_ : td::td_api::storageStatisticsByChat