code: def get_config(self, name, default=_MISSING):
          
  
          val = self._config.get(name, default)
          if val is _MISSING:
              raise ArgumentError("DeviceAdapter config {} did not exist and no default".format(name))
  
          return val
docs: Get a configuration setting from this DeviceAdapter.
  
          See :meth:`AbstractDeviceAdapter.get_config`.