about extend get permissionlist

When getting the permission list, can you consider adding a bool parameter to get the permission list that only belongs to the specified provider.replace code
.Where(x => !x.Providers.Any() || x.Providers.Contains(providerName))
to
.WhereIf(mustInProvider,x => x.Providers.Contains(providerName))
.WhereIf(!mustInProvider, x => !x.Providers.Any() || x.Providers.Contains(providerName))
in PermissionAppService.GetAsync
My application scenario is that when we add a login mode that does not use IdentityUser, but a custom table, when we assign permissions to this part of the login user, we must specify our extended permissionProvider,
thanks!