code: def get_certificates_v1(self):
          
          certs = []
          for x in self.get_signature_names():
              certs.append(x509.Certificate.load(self.get_certificate_der(x)))
  
          return certs
docs: Return a list of :class:`asn1crypto.x509.Certificate` which are found
          in the META-INF folder (v1 signing).
          Note that we simply extract all certificates regardless of the signer.
          Therefore this is just a list of all certificates found in all signers.