Changing the "Allow members to share" SharePoint site Access Requests setting using Office Dev PnP

I created a extention for that:

  try
                {
                    Web rootweb = ctx.Site.RootWeb;
                    ctx.Load(rootweb, w => w.MembersCanShare);
                    ctx.ExecuteQueryRetry();
                    SharingConfiguration sharingSettings = configurationData.ToConfigObject<SharingConfiguration>();
                    // Set MembersCanShare, default to false

                    rootweb.MembersCanShare = sharingSettings.Sharing.MembersCanShare ? sharingSettings.Sharing.MembersCanShare : false;
                    rootweb.Update();
                    ctx.Load(rootweb, w => w.AssociatedMemberGroup.AllowMembersEditMembership);
                    ctx.ExecuteQueryRetry();

                    // Set AllowMembersEditMembership, default to false
                    rootweb.AssociatedMemberGroup.AllowMembersEditMembership = sharingSettings.Sharing.AllowMembersEditMembership ? sharingSettings.Sharing.AllowMembersEditMembership : false;
                    rootweb.AssociatedMemberGroup.Update();
                    ctx.ExecuteQueryRetry();

                    ctx.Load(rootweb, w => w.RequestAccessEmail);
                    ctx.ExecuteQueryRetry();

                    rootweb.RequestAccessEmail = sharingSettings.Sharing.RequestAccessEmail;
                    rootweb.Update();
                    ctx.ExecuteQueryRetry();
                }
                catch (Exception ex)
                {
                    TraceHelper.WriteErrorToListener("LogFile", ex.Message);
                }