custom action with params in edit part

[alex baron]

Hello 

i would like to add a custom action in my edit via generator.yml.

now: i use route to define the route action but i would like to pass params like this

```

edit:

        params:

            actions:

                save: ~

                list: ~

                init: 

                    route: initInventaire

                    params: 

                        - pk : ClntInventaire.getId

```

i've got this error : 

Some mandatory parameters are missing ("pk") to generate a URL for route "initInventaire"

what should i do  ?

thanks.