fix: Export CallbackSigner

fix version based unit tests

Author: gpeacock

c2pa/__init__.py

@@ -12,6 +12,6 @@
 # each license.
 
 from .c2pa_api import Reader, Builder, create_signer, create_remote_signer, sign_ps256
-from .c2pa import Error, SigningAlg, sdk_version, version
+from .c2pa import Error, SigningAlg, CallbackSigner, sdk_version, version
 
-__all__ = ['Reader', 'Builder', 'create_signer', 'sign_ps256', 'Error', 'SigningAlg', 'sdk_version', 'version', 'create_remote_signer']
+__all__ = ['Reader', 'Builder', 'CallbackSigner', 'create_signer', 'sign_ps256', 'Error', 'SigningAlg', 'sdk_version', 'version', 'create_remote_signer']

tests/test_api.py

@@ -57,7 +57,7 @@ def test_v2_read_cloud_manifest():
     assert manifest is not None
 
 def test_version():
-    assert version() == "0.5.3"
+    assert version() == "0.6.0"
 
 def test_sdk_version():
     assert "c2pa-rs/" in sdk_version()

tests/test_unit_tests.py

@@ -25,7 +25,7 @@
 
 class TestC2paSdk(unittest.TestCase):
     def test_version(self):
-        self.assertIn("0.5.3", sdk_version())
+        self.assertIn("0.6.0", sdk_version())
 
 
 class TestReader(unittest.TestCase):