groupState ========== Represents the state of a panel group (current idea, selected navigation, minimised states, etc.) .. currentmodule:: app.models .. js:class:: GroupStateModel () Group state model :extends: :js:class:`app.models.base.BaseModel` .. js:function:: toJSON() Return a copy of the model's attributes for JSON stringification. .. js:function:: validate() Validate the model attributes and returns an error message if the model is invalid and undefined if the model is valid .. js:class:: GroupStates () Group states collection :extends: :js:class:`app.models.base.BaseCollection` .. js:function:: validate() Validate the model attributes