chore: refactor Device to contain StoredBackendInfo

Author: vanyae-cqc

integration/test_devices.py

@@ -1,6 +1,7 @@
 """Test basic functionality relating to the device module."""
 
 from pytket.backends.backendinfo import BackendInfo
+from quantinuum_schemas.models.backend_info import StoredBackendInfo
 
 import qnexus as qnx
 from qnexus.models import Device
@@ -16,7 +17,7 @@ def test_device_get_all(
 
     for device in devices:
         assert isinstance(device, Device)
-        assert device.backend_info_dict is not None  # pylint: disable=protected-access
+        assert isinstance(device.stored_backend_info, StoredBackendInfo)
         assert isinstance(device.backend_info, BackendInfo)
 
 

qnexus/client/devices.py

@@ -73,9 +73,7 @@ def get_all(  # pylint: disable=too-many-positional-arguments
                     backend_name=backend_name,
                     device_name=backend_info["device_name"],
                     nexus_hosted=backendinfolist["is_local"],
-                    backend_info_dict=StoredBackendInfo(**backend_info)
-                    .to_pytket_backend_info()
-                    .to_dict(),
+                    stored_backend_info=StoredBackendInfo(**backend_info),
                 )
             )
 

qnexus/models/__init__.py

@@ -81,12 +81,12 @@ class Device(BaseModel):
     backend_name: str
     device_name: Optional[str]
     nexus_hosted: bool
-    backend_info_dict: dict[str, Any]
+    stored_backend_info: StoredBackendInfo
 
     @property
     def backend_info(self) -> BackendInfo:
         """The BackendInfo for the Device."""
-        return BackendInfo.from_dict(self.backend_info_dict)
+        return self.stored_backend_info.to_pytket_backend_info()
 
     def df(self) -> pd.DataFrame:
         """Present in a pandas DataFrame."""
@@ -95,7 +95,7 @@ def df(self) -> pd.DataFrame:
                 "backend_name": self.backend_name,
                 "device_name": self.device_name,
                 "nexus_hosted": self.nexus_hosted,
-                "backend_info": self.backend_info_dict,
+                "backend_info": self.stored_backend_info.to_pytket_backend_info(),
             },
             index=[0],
         )