services.postgresql.ensureUsers."[definition 1-entry 1]".ensurePermissions' does not exist

[papanito]

I follow postgresql.ensureUsers:

 ];
    services.postgresql = {
      enable = true;
      package = pkgs.postgresql_17;
      ensureDatabases = [ "nixcloud" ];
      ensureUsers =[
        {
          name = "nixcloud";
          ensurePermissions = {
            "DATABASE nixcloud" = "ALL PRIVILEGES";
          };
        }
      ];

This however results in an error:

       … while evaluating the attribute 'value'
         at /nix/store/l9nb64iii15y0nr37qrs1cfm6rlpg6gh-source/lib/modules.nix:846:9:
          845|     in warnDeprecation opt //
          846|       { value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |         ^
          847|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/l9nb64iii15y0nr37qrs1cfm6rlpg6gh-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `assertions':

       … while evaluating definitions from `/nix/store/l9nb64iii15y0nr37qrs1cfm6rlpg6gh-source/nixos/modules/services/databases/postgresql.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: The option `services.postgresql.ensureUsers."[definition 1-entry 1]".ensurePermissions' does not exist. Definition values:
       - In `/nix/store/dnh4wx7i5f9i2x158dhfr6b92zywqxxh-source/modules/development.nix':
           {
             "DATABASE nixcloud" = "ALL PRIVILEGES";
           }