public static T Users <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string user1)
 {
     throw null;
 }
 public static T Users <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string user1, string user2, string user3, string user4, string user5, string user6, string user7, string user8)
 {
     throw null;
 }
 public static T Groups <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string group1)
 {
     throw null;
 }
 public static T Groups <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string group1, string group2, string group3, string group4, string group5, string group6, string group7, string group8)
 {
     throw null;
 }
 public static T Clients <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string connection1, string connection2, string connection3, string connection4, string connection5, string connection6, string connection7, string connection8)
 {
     throw null;
 }
 public static T GroupExcept <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string groupName, string excludedConnectionId1, string excludedConnectionId2, string excludedConnectionId3, string excludedConnectionId4, string excludedConnectionId5, string excludedConnectionId6, string excludedConnectionId7, string excludedConnectionId8)
 {
     throw null;
 }
 public static T Clients <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string connection1)
 {
     throw null;
 }
 public static T AllExcept <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string excludedConnectionId1, string excludedConnectionId2, string excludedConnectionId3, string excludedConnectionId4, string excludedConnectionId5, string excludedConnectionId6)
 {
     throw null;
 }
 public static T Users <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, System.Collections.Generic.IEnumerable <string> userIds)
 {
     throw null;
 }
 public static T GroupExcept <T>(this Microsoft.AspNetCore.SignalR.IHubClients <T> hubClients, string groupName, System.Collections.Generic.IEnumerable <string> excludedConnectionIds)
 {
     throw null;
 }
 public HubCallerClients(Microsoft.AspNetCore.SignalR.IHubClients hubClients, string connectionId)
 {
 }