Rename to readonly

Author: kvilon

libs/labelbox/src/labelbox/data/annotation_types/relationship.py

@@ -16,7 +16,7 @@ class Type(Enum):
     source: Union[ObjectAnnotation, ClassificationAnnotation]
     target: ObjectAnnotation
     type: Type = Type.UNIDIRECTIONAL
-    read_only: Optional[bool]
+    readonly: Optional[bool] = None
 
 
 class RelationshipAnnotation(BaseAnnotation):

libs/labelbox/src/labelbox/data/serialization/ndjson/relationship.py

@@ -14,7 +14,7 @@ class _Relationship(BaseModel):
     source: str
     target: str
     type: str
-    read_only: Optional[bool]
+    readonly: Optional[bool] = None
 
 class NDRelationship(NDAnnotation):
     relationship: _Relationship
@@ -51,6 +51,6 @@ def from_common(
                 source=str(relationship.source._uuid),
                 target=str(relationship.target._uuid),
                 type=relationship.type.value,
-                read_only=relationship.read_only,
+                readonly=relationship.readonly,
             ),
         )