+ model_name: str
+
+
+@dataclass
+class CheckCharmStatusInput:
+ """
+ Input dataclass for checking on a specific charm's deployment
+ status
+
+ Attributes:
+ -----------
+ vim_uuid : str
+ The UUID of the VIM as stored in the OSM vim_accounts
+ collection in Mongo.
+
+ model_name : str
+ Name of the model to create in Juju.
+
+ application_name : str
+ Name of the application that the state is going to be
+ awaited.
+
+ poll_interval : int (optional)
+ Time, in seconds, to wait between status checks.
+ """
+
+ vim_uuid: str
+ model_name: str
+ application_name: str
+ poll_interval: int = 1
+
+
+@dataclass
+class ChangeVnfStateInput:
+ """
+ Input dataclass for changing VNF State.
+
+ Attributes:
+ -----------
+ vnfr_uuid : str
+ The UUID of the VNF which is stored in the OSM vnfrs
+ collection in Mongo.
+
+ state : VnfState
+ A representation of the VNF state (STOPPED or STARTED).
+ """
+
+ vnfr_uuid: str
+ state: VnfState
+
+
+@dataclass
+class ChangeVnfInstantiationStateInput:
+ """
+ Input dataclass for changing VNF Instantiation State.
+
+ Attributes:
+ -----------
+ vnfr_uuid : str
+ The UUID of the VNF which is stored in the OSM vnfrs
+ collection in Mongo.
+
+ state : VnfInstantiationState
+ A representation of the VNF instantiation state (NOT_INSTANTIATED or INSTANTIATED).
+
+ """
+
+ vnfr_uuid: str
+ state: VnfInstantiationState
+
+
+@dataclass
+class GetTaskQueueInput:
+ """
+ Input dataclass for get task queue activity.
+
+ Attributes:
+ -----------
+ vnfr_uuid : str
+ The UUID of the VNF which is stored in the OSM vnfrs
+ collection in Mongo.
+
+ """
+
+ vnfr_uuid: str
+
+
+@dataclass
+class GetTaskQueueOutput:
+ """
+ Output dataclass for get task queue activity.
+
+ Attributes:
+ -----------
+ task_queue : str
+ Name of the queue which is used to Deploy VNF.
+ """
+
+ task_queue: str
+
+
+@dataclass
+class GetVnfDetailsInput:
+ """
+ Input dataclass for get vnf details activity.
+
+ Attributes:
+ -----------
+ vnfr_uuid : str
+ The UUID of the VNF which is stored in the OSM vnfrs
+ collection in Mongo.
+ """
+
+ vnfr_uuid: str