Add missing ABC declaration following PR feedback in #240.

This commit is contained in:
Alex Stokes 2019-08-14 09:25:54 -07:00
parent 9977933fd1
commit 3b19104284
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@ -13,7 +13,7 @@ class KeyType(Enum):
ECDSA = 3
class Key:
class Key(ABC):
"""
A ``Key`` represents a cryptographic key.
"""