[client] add deprecation warning

Author: labo-flg

pycti/entities/stix_cyber_observable/opencti_stix_cyber_observable_deprecated.py

@@ -1,5 +1,4 @@
-# dommage c'est du python 3.13, sinon deprecation lib
-# from warnings import deprecated
+import deprecation
 
 
 class StixCyberObservableDeprecatedMixin:
@@ -11,6 +10,11 @@ class StixCyberObservableDeprecatedMixin:
     :return the observable
     """
 
+    @deprecation.deprecated(
+        deprecated_in="6.2",
+        removed_in="6.5",
+        details="Use promote_to_indicator_v2 instead.",
+    )
     def promote_to_indicator(self, **kwargs):
         id = kwargs.get("id", None)
         custom_attributes = kwargs.get("customAttributes", None)

requirements.txt

@@ -11,6 +11,7 @@ cachetools~=5.3.0
 prometheus-client~=0.20.0
 opentelemetry-api~=1.22.0
 opentelemetry-sdk~=1.22.0
+deprecation~=2.1.0
 # OpenCTI
 filigran-sseclient~=1.0.0
 stix2~=3.0.1