diff --git a/castellan/key_manager/barbican_key_manager.py b/castellan/key_manager/barbican_key_manager.py
index 9545c1a..892da26 100644
--- a/castellan/key_manager/barbican_key_manager.py
+++ b/castellan/key_manager/barbican_key_manager.py
@@ -33,11 +33,6 @@
 from castellan.common import exception
 from castellan.common.objects import key as key_base_class
 from castellan.common.objects import opaque_data as op_data
-from castellan.common.objects import passphrase
-from castellan.common.objects import private_key as pri_key
-from castellan.common.objects import public_key as pub_key
-from castellan.common.objects import symmetric_key as sym_key
-from castellan.common.objects import x_509
 from castellan.i18n import _
 from castellan.key_manager import key_manager
 
@@ -85,14 +80,6 @@
 
 class BarbicanKeyManager(key_manager.KeyManager):
     """Key Manager Interface that wraps the Barbican client API."""
-
-    _secret_type_dict = {
-        op_data.OpaqueData: 'opaque',
-        passphrase.Passphrase: 'passphrase',
-        pri_key.PrivateKey: 'private',
-        pub_key.PublicKey: 'public',
-        sym_key.SymmetricKey: 'symmetric',
-        x_509.X509: 'certificate'}
 
     def __init__(self, configuration):
         self._barbican_client = None
diff --git a/castellan/key_manager/key_manager.py b/castellan/key_manager/key_manager.py
index 7a29b09..028f58b 100644
--- a/castellan/key_manager/key_manager.py
+++ b/castellan/key_manager/key_manager.py
@@ -19,6 +19,13 @@
 
 import abc
 
+from castellan.common.objects import opaque_data as op_data
+from castellan.common.objects import passphrase
+from castellan.common.objects import private_key as pri_key
+from castellan.common.objects import public_key as pub_key
+from castellan.common.objects import symmetric_key as sym_key
+from castellan.common.objects import x_509
+
 
 class KeyManager(object, metaclass=abc.ABCMeta):
     """Base Key Manager Interface
@@ -26,6 +33,14 @@
     A Key Manager is responsible for managing encryption keys for volumes. A
     Key Manager is responsible for creating, reading, and deleting keys.
     """
+
+    _secret_type_dict = {
+        op_data.OpaqueData: "opaque",
+        passphrase.Passphrase: "passphrase",
+        pri_key.PrivateKey: "private",
+        pub_key.PublicKey: "public",
+        sym_key.SymmetricKey: "symmetric",
+        x_509.X509: "certificate"}
 
     @abc.abstractmethod
     def __init__(self, configuration):
diff --git a/castellan/key_manager/vault_key_manager.py b/castellan/key_manager/vault_key_manager.py
index f198ffe..2510f2d 100644
--- a/castellan/key_manager/vault_key_manager.py
+++ b/castellan/key_manager/vault_key_manager.py
@@ -33,12 +33,9 @@
 import requests
 
 from castellan.common import exception
-from castellan.common.objects import opaque_data as op_data
-from castellan.common.objects import passphrase
 from castellan.common.objects import private_key as pri_key
 from castellan.common.objects import public_key as pub_key
 from castellan.common.objects import symmetric_key as sym_key
-from castellan.common.objects import x_509
 from castellan.i18n import _
 from castellan.key_manager import key_manager
 
@@ -83,14 +80,6 @@
 class VaultKeyManager(key_manager.KeyManager):
     """Key Manager Interface that wraps the Vault REST API."""
 
-    _secret_type_dict = {
-        op_data.OpaqueData: 'opaque',
-        passphrase.Passphrase: 'passphrase',
-        pri_key.PrivateKey: 'private',
-        pub_key.PublicKey: 'public',
-        sym_key.SymmetricKey: 'symmetric',
-        x_509.X509: 'certificate'}
-
     def __init__(self, configuration):
         self._conf = configuration
         self._conf.register_opts(_vault_opts, group=_VAULT_OPT_GROUP)