Deprecate 'DecryptionConfig' & remove reflection

Author: b-long

validate_otdf_python.py

@@ -46,14 +46,15 @@ def verify_encrypt_str() -> None:
 
         config: EncryptionConfig = _get_configuration()
 
-        # from otdf_python.go import Slice_string
+        from otdf_python.go import Slice_string
+
         # da = Slice_string(
         #     [
         #         "https://example.com/attr/attr1/value/value1",
         #         "https://example.com/attr/attr1/value/value2",
         #     ]
         # )
-        da = None
+        da = Slice_string([])
 
         tdf_manifest_json = EncryptString(
             inputText="Hello from Python",
@@ -90,14 +91,15 @@ def verify_encrypt_file() -> None:
             SOME_PLAINTEXT_FILE = Path(tmpDir) / "new-file.txt"
             SOME_PLAINTEXT_FILE.write_text("Hello world")
 
-            # from otdf_python.go import Slice_string
+            from otdf_python.go import Slice_string
+
             # da = Slice_string(
             #     [
             #         "https://example.com/attr/attr1/value/value1",
             #         "https://example.com/attr/attr1/value/value2",
             #     ]
             # )
-            da = None
+            da = Slice_string([])
             outputFilePath = EncryptFile(
                 inputFilePath=str(SOME_PLAINTEXT_FILE),
                 outputFilePath=str(SOME_ENCRYPTED_FILE),