QueryCredentialsAttributes(Attribute)
Returns information about the credentials
| Attribute | Return type |
| SECPKG_CRED_ATTR_NAMES | PyUnicode - returns username that credentials represent |
| SECPKG_ATTR_SUPPORTED_ALGS | Not supported yet SecPkgCred_SupportedAlgs: |
| SECPKG_ATTR_CIPHER_STRENGTHS | Not supported yet SecPkgCred_CipherStrengths: |
| SECPKG_ATTR_SUPPORTED_PROTOCOLS | Not supported yet SecPkgCred_SupportedProtocols: |