Fixing type and import.

2 files changed, 2 insertions, 1 deletions

diff --git a/src/argaze/ArUcoMarkers/ArUcoDetector.py b/src/argaze/ArUcoMarkers/ArUcoDetector.py
index 3a2423f..a0f874b 100644
--- a/src/argaze/ArUcoMarkers/ArUcoDetector.py
+++ b/src/argaze/ArUcoMarkers/ArUcoDetector.py
@@ -87,7 +87,7 @@ class DetectorParameters():
         return getattr(self.__parameters, parameter)
 
     @classmethod
-    def from_json(self, json_filepath) -> DetectorParameters:
+    def from_json(self, json_filepath) -> Self:
         """Load detector parameters from .json file."""
 
         with open(json_filepath) as configuration_file:
diff --git a/src/argaze/ArUcoMarkers/ArUcoMarkersGroup.py b/src/argaze/ArUcoMarkers/ArUcoMarkersGroup.py
index 1723f1c..1cce648 100644
--- a/src/argaze/ArUcoMarkers/ArUcoMarkersGroup.py
+++ b/src/argaze/ArUcoMarkers/ArUcoMarkersGroup.py
@@ -17,6 +17,7 @@ __copyright__ = "Copyright 2023, Ecole Nationale de l'Aviation Civile (ENAC)"
 __license__ = "GPLv3"
 
 from typing import Self
+from dataclasses import dataclass
 import json
 import math
 import itertools