code: def insert(self, cert_p):
          
          return lib.zcertstore_insert(self._as_parameter_, byref(zcert_p.from_param(cert_p)))
docs: Insert certificate into certificate store in memory. Note that this
  does not save the certificate to disk. To do that, use zcert_save()
  directly on the certificate. Takes ownership of zcert_t object.