- u -

• udp_p2p_ : callProtocol
• udp_reflector_ : callProtocol
• unavailability_reason_ : availableReactions
• unclaimed_prize_count_ : messageGiveawayCompleted , messageGiveawayWinners
• unique_id_ : remoteFile
• unread_count_ : chat , forumTopic , updateChatReadInbox , updateUnreadChatCount , updateUnreadMessageCount
• unread_mention_count_ : chat , forumTopic , updateChatUnreadMentionCount , updateMessageMentionRead
• unread_message_count_ : messageThreadInfo
• unread_reaction_count_ : chat , forumTopic , updateChatUnreadReactionCount , updateMessageUnreadReactions
• unread_reactions_ : message , updateMessageUnreadReactions
• unread_unmuted_count_ : updateUnreadChatCount , updateUnreadMessageCount
• unrestrict_boost_count_ : setSupergroupUnrestrictBoostCount , supergroupFullInfo
• update_order_of_installed_sticker_sets_ : messageSendOptions
• update_recent_reactions_ : addMessageReaction , setStoryReaction
• updates_ : updates
• upgraded_from_basic_group_id_ : supergroupFullInfo
• upgraded_from_max_message_id_ : supergroupFullInfo
• upgraded_to_supergroup_id_ : basicGroup
• uploaded_size_ : remoteFile
• url_ : answerCallbackQuery , authenticationCodeTypeFragment , bankCardActionOpenUrl , botMenuButton , callbackQueryAnswer , collectibleItemInfo , getChatBoostLinkInfo , getMessageLinkInfo , getWebAppUrl , getWebPageInstantView , httpUrl , inlineKeyboardButtonTypeLoginUrl , inlineKeyboardButtonTypeUrl , inlineKeyboardButtonTypeWebApp , inlineQueryResultArticle , inlineQueryResultsButtonTypeWebApp , inputInlineQueryResultArticle , inputStoryAreaTypeLink , internalLinkTypeAttachmentMenuBot , internalLinkTypeChatBoost , internalLinkTypeInstantView , internalLinkTypeMessage , keyboardButtonTypeWebApp , linkPreview , linkPreviewOptions , linkPreviewTypeEmbeddedAnimationPlayer , linkPreviewTypeEmbeddedAudioPlayer , linkPreviewTypeEmbeddedVideoPlayer , linkPreviewTypeExternalAudio , linkPreviewTypeExternalVideo , loginUrlInfoOpen , loginUrlInfoRequestConfirmation , mainWebApp , messageSponsor , openWebApp , pageBlockEmbedded , pageBlockEmbeddedPost , pageBlockPhoto , pageBlockRelatedArticle , paymentOption , paymentProviderOther , revenueWithdrawalStateSucceeded , richTextAnchorLink , richTextReference , richTextUrl , rtmpUrl , storyAreaTypeLink , textEntityTypeTextUrl , tMeUrl , userLink , webAppInfo
• urls_ : tMeUrls
• usd_rate_ : chatRevenueStatistics , starRevenueStatistics
• use_chat_info_database_ : setTdlibParameters
• use_date_ : premiumGiftCodeInfo
• use_default_disable_mention_notifications_ : chatNotificationSettings
• use_default_disable_pinned_message_notifications_ : chatNotificationSettings
• use_default_is_anonymous_ : addPendingPaidMessageReaction
• use_default_mute_for_ : chatNotificationSettings
• use_default_mute_stories_ : chatNotificationSettings , scopeNotificationSettings
• use_default_show_preview_ : chatNotificationSettings
• use_default_show_story_sender_ : chatNotificationSettings
• use_default_sound_ : chatNotificationSettings
• use_default_story_sound_ : chatNotificationSettings
• use_file_database_ : setTdlibParameters
• use_less_data_for_calls_ : autoDownloadSettings
• use_message_database_ : setTdlibParameters
• use_portrait_orientation_ : startGroupCallRecording
• use_secret_chats_ : setTdlibParameters
• use_test_dc_ : setTdlibParameters
• used_sender_id_ : messageReaction
• user_ : updateUser
• user_administrator_rights_ : keyboardButtonTypeRequestChat
• user_chat_id_ : businessConnection , updateNewChatJoinRequest
• user_country_code_ : giveawayParticipantStatusDisallowedCountry
• user_full_info_ : updateUserFullInfo
• user_id_ : addChatMember , addStickerToSet , botCommandScopeChatMember , businessConnection , call , canSendMessageToUser , chatAdministrator , chatBoostSourceGiftCode , chatBoostSourceGiveaway , chatBoostSourcePremium , chatEventMemberInvited , chatEventMemberPromoted , chatEventMemberSubscriptionExtended , chatInviteLinkCount , chatInviteLinkMember , chatJoinRequest , chatStatisticsAdministratorActionsInfo , chatStatisticsInviterInfo , chatStatisticsMessageSenderInfo , chatTypePrivate , chatTypeSecret , closeBirthdayUser , contact , createCall , createNewSecretChat , createNewStickerSet , createPrivateChat , failedToAddMember , gameHighScore , getGameHighScores , getGroupsInCommon , getInlineGameHighScores , getMenuButton , getStarGiftPaymentOptions , getUser , getUserChatBoosts , getUserFullInfo , getUserGifts , getUserProfilePhotos , getUserSupportInfo , inlineKeyboardButtonTypeUser , messageChatDeleteMember , messageSenderUser , messageViewer , premiumGiftCodeInfo , processChatJoinRequest , refundStarPayment , replaceStickerInSet , secretChat , sendGift , setGameScore , setInlineGameScore , setMenuButton , setPassportElementErrors , setStickerSetThumbnail , setUserPersonalProfilePhoto , setUserSupportInfo , sharedUser , sharePhoneNumber , starTransactionPartnerBot , starTransactionPartnerBusiness , starTransactionPartnerUser , storePaymentPurposeGiftedStars , suggestUserProfilePhoto , telegramPaymentPurposeGiftedStars , textEntityTypeMentionName , tMeUrlTypeUser , transferChatOwnership , updatePaidMediaPurchased , updateUserFullInfo , updateUserStatus , uploadStickerFile
• user_ids_ : addChatMembers , chatJoinRequestsInfo , createNewBasicGroupChat , foundUsers , getChatEventLog , importedContacts , inviteGroupCallParticipants , messageInviteVideoChatParticipants , removeContacts , setCloseFriends , storePaymentPurposePremiumGiftCodes , storyPrivacySettingsSelectedUsers , telegramPaymentPurposePremiumGiftCodes , userPrivacySettingRuleAllowUsers , userPrivacySettingRuleRestrictUsers , users
• user_is_bot_ : keyboardButtonTypeRequestUsers
• user_is_premium_ : keyboardButtonTypeRequestUsers
• user_location_ : getInlineQueryResults , updateNewChosenInlineResult , updateNewInlineQuery
• username_ : callServerTypeWebrtc , checkChatUsername , collectibleItemTypeUsername , pageBlockChatLink , proxyTypeHttp , proxyTypeSocks5 , searchPublicChat , setSupergroupUsername , setUsername , sharedChat , sharedUser , toggleBotUsernameIsActive , toggleSupergroupUsernameIsActive , toggleUsernameIsActive
• usernames_ : reorderActiveUsernames , reorderBotActiveUsernames , reorderSupergroupActiveUsernames , supergroup , user
• users_ : messageUsersShared
• utc_time_offset_ : timeZone
• utility_bill_ : inputPassportElementUtilityBill , passportElementUtilityBill