Revize a6727aa9

Re #8472 - Added missing docstrings to KeyService and CertificateService classes

src/services/cryptography.py

@@ -190 +190 @@
         :param subject_key: string containing the private key to be used when creating the certificate in PEM format
         :param issuer_key: string containing the private key of the issuer's certificate in PEM format
         :param issuer_pem: string containing the certificate of the issuer that will sign this CSR in PEM format
-        :param issuer_key: string containing the private key of the issuer's certificate in PEM format
         :param subject_key_pass: string containing the passphrase of the private key used when creating the certificate
         in PEM format
         :param issuer_key_pass: string containing the passphrase of the private key of the issuer's certificate in PEM