update documentation to use new equality checks

Author: mathiasertl

docs/hazmat/primitives/asymmetric/cloudhsm.rst

@@ -88,7 +88,7 @@ if you only need a subset of functionality.
     ...         Maps the cryptography padding and algorithm to the corresponding KMS signing algorithm.
     ...         This is specific to your implementation.
     ...         """
-    ...         if isinstance(padding, PKCS1v15) and isinstance(algorithm, hashes.SHA256):
+    ...         if padding == PKCS1v15() and algorithm == hashes.SHA256():
     ...             return b"RSA_PKCS1_V1_5_SHA_256"
     ...         else:
     ...             raise NotImplementedError()

docs/x509/reference.rst

@@ -248,7 +248,7 @@ Loading Certificate Revocation Lists
         >>> from cryptography import x509
         >>> from cryptography.hazmat.primitives import hashes
         >>> crl = x509.load_pem_x509_crl(pem_crl_data)
-        >>> isinstance(crl.signature_hash_algorithm, hashes.SHA256)
+        >>> crl.signature_hash_algorithm == hashes.SHA256()
         True
 
 .. function:: load_der_x509_crl(data)
@@ -287,7 +287,7 @@ Loading Certificate Signing Requests
         >>> from cryptography import x509
         >>> from cryptography.hazmat.primitives import hashes
         >>> csr = x509.load_pem_x509_csr(pem_req_data)
-        >>> isinstance(csr.signature_hash_algorithm, hashes.SHA256)
+        >>> csr.signature_hash_algorithm == hashes.SHA256()
         True
 
 .. function:: load_der_x509_csr(data)
@@ -477,7 +477,7 @@ X.509 Certificate Object
         .. doctest::
 
             >>> from cryptography.hazmat.primitives import hashes
-            >>> isinstance(cert.signature_hash_algorithm, hashes.SHA256)
+            >>> cert.signature_hash_algorithm == hashes.SHA256()
             True
 
     .. attribute:: signature_algorithm_oid
@@ -716,7 +716,7 @@ X.509 CRL (Certificate Revocation List) Object
         .. doctest::
 
             >>> from cryptography.hazmat.primitives import hashes
-            >>> isinstance(crl.signature_hash_algorithm, hashes.SHA256)
+            >>> crl.signature_hash_algorithm == hashes.SHA256()
             True
 
     .. attribute:: signature_algorithm_oid
@@ -1119,7 +1119,7 @@ X.509 CSR (Certificate Signing Request) Object
         .. doctest::
 
             >>> from cryptography.hazmat.primitives import hashes
-            >>> isinstance(csr.signature_hash_algorithm, hashes.SHA256)
+            >>> csr.signature_hash_algorithm == hashes.SHA256()
             True
 
     .. attribute:: signature_algorithm_oid