/// <summary>
 /// Initializes a new instance of the <see cref="IdentityServer4.Test.TestUserResourceOwnerPasswordValidator"/> class.
 /// </summary>
 /// <param name="users">The users.</param>
 /// <param name="clock">The clock.</param>
 public UserResourceOwnerPasswordValidator(
     IMongoDbUserStore users,
     ISystemClock clock)
 {
     this.users = Guard.IsNotNull(users, nameof(users));
     this.clock = Guard.IsNotNull(clock, nameof(clock));
 }
 public CustomProfileService(
     IMongoDbUserStore userStore)
 {
     this.userStore = Guard.IsNotNull(userStore, nameof(userStore));
 }