add witness object

Signed-off-by: PatStLouis <[email protected]>

server/app/models/did_log.py

@@ -9,12 +9,23 @@ def model_dump(self, **kwargs) -> Dict[str, Any]:
         return super().model_dump(by_alias=True, exclude_none=True, **kwargs)
 
 
+class Witness(BaseModel):
+    id: str = Field(None)
+    weight: int = Field(None)
+
+
+class WitnessParam(BaseModel):
+    threshold: int = Field(None)
+    selfWeight: int = Field(None)
+    witnesses: List[Witness] = Field(None)
+
+
 class LogParameters(BaseModel):
     prerotation: bool = Field(None)
     portable: bool = Field(None)
     updateKeys: List[str] = Field(None)
     nextKeyHashes: List[str] = Field(None)
-    witness: List[str] = Field(None)
+    witness: WitnessParam = Field(None)
     deactivated: bool = Field(None)
     ttl: bool = Field(None)
     method: str = Field(None)