code: def _call(self, mthd, uri, admin, data, headers, std_headers):
          
          if not uri.startswith("http"):
              uri = "/".join((self.auth_endpoint.rstrip("/"), uri))
          if admin:
              # Admin calls use a different port
              uri = re.sub(r":\d+/", ":35357/", uri)
          if std_headers:
              hdrs = self._standard_headers()
          else:
              hdrs = {}
          if headers:
              hdrs.update(headers)
          kwargs = {"headers": hdrs}
          if data:
              kwargs["body"] = data
          if "tokens" in uri:
              # We'll handle the exception here
              kwargs["raise_exception"] = False
          return pyrax.http.request(mthd, uri, verify=self.verify_ssl, **kwargs)
docs: Handles all the common functionality required for API calls. Returns
          the resulting response object.