Make GA-GID and GA-SID optional

gso/api/v1/imports.py

@@ -62,7 +62,7 @@ class IptrunkImportModel(BaseModel):
     """Required fields for importing an existing :class:`gso.products.product_types.iptrunk`."""
 
     partner: str
-    geant_s_sid: str
+    geant_s_sid: str | None
     iptrunk_type: IptrunkType
     iptrunk_description: str
     iptrunk_speed: PhysicalPortCapacity
@@ -70,11 +70,11 @@ class IptrunkImportModel(BaseModel):
     iptrunk_isis_metric: int
     side_a_node_id: str
     side_a_ae_iface: str
-    side_a_ae_geant_a_sid: str
+    side_a_ae_geant_a_sid: str | None
     side_a_ae_members: list[LAGMember]
     side_b_node_id: str
     side_b_ae_iface: str
-    side_b_ae_geant_a_sid: str
+    side_b_ae_geant_a_sid: str | None
     side_b_ae_members: list[LAGMember]
 
     iptrunk_ipv4_network: ipaddress.IPv4Network