+@dataclass
+class GetVimCloudInput:
+ """
+ Input dataclass for get vim cloud 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 GetVimCloudOutput:
+ """
+ Output dataclass for get vim cloud activity.
+
+ Attributes:
+ -----------
+ cloud : str
+ Type of the cloud which is used to Deploy VNF.
+ """
+
+ cloud: str
+
+
+@dataclass
+class VduComputeConstraints:
+ """
+ Input dataclass for VDU constraints
+
+ Attributes:
+ -----------
+ cores : int (Number of virtual CPUs)
+
+ mem: int (GB)
+ """
+
+ cores: int
+ mem: int
+
+